The genus Citrus, comprising some of the most widely cultivated fruit crops worldwide, includes an uncertain number of species. Here we describe ten natural citrus species, using genomic, phylogenetic and biogeographic analyses of 60 accessions representing diverse citrus germ plasms, and propose that citrus diversified during the late Miocene epoch through a rapid southeast Asian radiation that correlates with a marked weakening of the monsoons. A second radiation enabled by migration across the Wallace line gave rise to the Australian limes in the early Pliocene epoch. Further identification and analyses of hybrids and admixed genomes provides insights into the genealogy of major commercial cultivars of citrus. Among mandarins and sweet orange, we find an extensive network of relatedness that illuminates the domestication of these groups. Widespread pummelo admixture among these mandarins and its correlation with fruit size and acidity suggests a plausible role of pummelo introgression in the selection of palatable mandarins. This work provides a new evolutionary framework for the genus Citrus.
Акимова Елена Васильевна, Миклашевич Елена Александровна, Харевич Владимир Михайлович
Позднепалеолитическое местонахождение Саргов Улус входит в крупный комплекс объектов археологического наследия горного массива Оглахты, расположенного по левому берегу Красноярского водохранилища (Республика Хакасия). Первые сборы каменных артефактов палеолитического возраста были произведены З.А. Абрамовой в 1974 г. в районе затопленного улуса Саргов, ранее известного как место сосредоточения курганов энеолита, железного века и раннего средневековья. Выявленный памятник вошел в сводку позднепалеолитических стоянок Енисея под названием «Советская Хакасия». Весной 2019 г. при низком уровне воды были найдены отдельные артефакты, спроецированные на отмель из размываемых береговых уступов. Памятник, получивший название Саргов Улус, относится к экспонированным местонахождениям с характерной для береговой зоны водохранилища спецификой условий залегания и типологического набора каменных изделий. Коллекция каменного инвентаря, полученная в течение последних лет (2019–23 гг.), смешанная, насчитывает более 250 предметов, относящихся к позднему палеолиту и палеометаллу/средневековью. Позднепалеолитическая группа орудий включает в себя нуклеусы, разнообразные скребловидные и ножевидные орудия, единичные скребки, резцы, обломки массивных пластин с ретушью, галечные орудия (чопперы-струги). Характер каменного инвентаря позволяет отнести памятник к кокоревской археологической культуре, тем самым расширив к югу ареал кокоревской культуры в долине Среднего Енисея. По предварительным данным, на основании аналогий отдельным предметам в финальнопалеолитических комплексах Красноярского водохранилища, возраст местонахождения может быть определен заключительной стадией сартанского похолодания или рубежом плейстоцена-голоцена. Отнесение части коллекции (отбойники на массивных целых гальках, нуклевидно оббитых гальках и скребловидных орудиях) к позднему палеолиту вызывает сомнение. Данные предметы могут иметь значительно более поздний возраст, вплоть до эпохи раннего средневековья. Открытие Саргова Улуса позволяет рассчитывать на возможность выявления новых позднепалеолитических памятников в прибрежной полосе южной части Красноярского водохранилища.
This article focuses on one critical factor among the many influencing identity formation in the second generation of Albanian origin in Greece: the acquisition of citizenship. Citizenship is more than a legal status; it serves as a fundamental marker of belonging, shaping access to rights, social mobility, and political participation. Despite the 2015 Greek citizenship law aiming to facilitate naturalization, many second-generation Albanians still face bureaucratic obstacles, and prolonged legal uncertainty. These barriers create a sense of social exclusion by limiting opportunities in education and employment and depriving them the right of political participation. Navigating these challenges forces individuals to negotiate their identity in complex ways. Some emphasize Greek identity, others adopt a hybrid identity, yet others reinforce Albanian self-identification. Broader societal attitudes, including stereotypes and discrimination, further shape these identity strategies. These strategies are furthermore influenced by the individuals’ life trajectories, which can either reinforce a sense of otherness or counteract it. Through in-depth interviews, this qualitative study argues that citizenship constitutes a crucial determinant of cultural and/or national belonging for some people, as it produces practical and symbolic conditions of inclusion or exclusion. Ultimately, Greek citizenship functions not just as an institutional gatekeeper but as a broader social force that shapes an individuals’ identity and sense of belonging within Greek society.
Maximillian Newman, John Wakeley, Wai-Tong Louis Fan
We introduce a stochastic model of a population with overlapping generations and arbitrary levels of self-fertilization versus outcrossing. We study how the global graph of reproductive relationships, or population pedigree, influences the genealogical relationships of a sample of two gene copies at a genetic locus. Specifically, we consider a diploid Moran model with constant population size $N$ over time, in which a proportion of offspring are produced by selfing. We show that the conditional distribution of the pairwise coalescence time at a single locus given the random pedigree converges to a limit law as $N$ tends to infinity. The distribution of coalescence times obtained in this way predicts variation among unlinked loci in a sample of individuals. Traditional coalescent analyses implicitly average over pedigrees and generally make different predictions. We describe three different behaviors in the limit depending on the relative strengths, from large to small, of selfing versus outcrossing: partial selfing, limited outcrossing, and negligible outcrossing. In the case of partial selfing, coalescence times are related to the Kingman coalescent, similar to what is found in traditional analyses. In the case of limited outcrossing, the retained pedigree information forms a random graph, with coalescence times given by the meeting times of random walks on this graph. In the case of negligible outcrossing, which represents complete or nearly complete selfing, coalescence times are determined entirely by the fixed times to common ancestry of diploid individuals in the pedigree.
The history of science in public discussion is dominated by large-scale narratives of revolution. These locate epistemic violence within specialist communities, obscuring the role of science in environmental destruction and in silencing other ways of engaging with the world. At the same time, the language of revolution has fostered an unrealistic image of science, giving too much prominence to crisis, heroic challenges to authority and the wholescale abandonment of established theory. Revolutionary narratives in history of science were consolidated in the decades around 1900, as the genealogy for an emerging union of science, industry and imperial power. Even when explicitly rejected, they function as ‘ghost narratives’ within teaching and research. Relocating epistemic violence not only involves changing the geography and chronology of established narratives, a project that is well under way. It also requires understanding that revolution is the wrong category of event for communicating science and its history.
In the mid-20th century, the region of Extremadura suffered an important exodus of unskilled young people in search of work opportunities that would allow them to survive. Nowadays, the phenomenon is repeating itself, but with certain differences. The current emigrant is somewhat more adult, more qualified and without a specific job in the place of destination. The current study focuses on a survey carried out at the University of Extremadura among students in the areas of social sciences, humanities, legal sciences and economics in order to understand their intention to emigrate abroad once they have finished their studies. We found that there is no distinction between genders and that most of the students have direct or indirect cases of international mobility in their environment, which encourages them to take this option into account if, once they have finished their studies, their job aspirations are not satisfied in their place of origin. This reflects certain similarities with the migratory movement that took place in the mid-20th century; however, today, the objectives pursued with this mobility are quite different.
Solène Tarride, Martin Maarand, Mélodie Boillet
et al.
This paper presents a complete workflow designed for extracting information from Quebec handwritten parish registers. The acts in these documents contain individual and family information highly valuable for genetic, demographic and social studies of the Quebec population. From an image of parish records, our workflow is able to identify the acts and extract personal information. The workflow is divided into successive steps: page classification, text line detection, handwritten text recognition, named entity recognition and act detection and classification. For all these steps, different machine learning models are compared. Once the information is extracted, validation rules designed by experts are then applied to standardize the extracted information and ensure its consistency with the type of act (birth, marriage, and death). This validation step is able to reject records that are considered invalid or merged. The full workflow has been used to process over two million pages of Quebec parish registers from the 19-20th centuries. On a sample comprising 65% of registers, 3.2 million acts were recognized. Verification of the birth and death acts from this sample shows that 74% of them are considered complete and valid. These records will be integrated into the BALSAC database and linked together to recreate family and genealogical relations at large scale.
We study the structure of genealogical trees associated with explosive Crump-Mode-Jagers branching processes (stopped at the explosion time), proving criteria for the associated tree to contain a node of infinite degree (a star) or an infinite path. Next, we provide uniqueness criteria under which with probability $1$ there exists exactly one of a unique star or a unique infinite path. Under the latter uniqueness criteria, we also provide an example where, with strictly positive probability less than $1$, there exists a unique node of infinite degree in the model, thus this probability is not restricted to being $0$ or $1$. Moreover, we provide structure theorems when there is a star, when certain trees appear as sub-trees of the star infinitely often. We apply our results to general discrete evolving tree models of explosive recursive trees with fitness, and as particular cases, we study a family of super-linear preferential attachment models with fitness. In the latter regime, we derive phase transitions in the model parameters in three different examples, leading to either exactly one star with probability $1$, or one infinite path with probability $1$, with every node having finite degree. Furthermore, we highlight examples where sub-trees $T$ of arbitrary size can appear infinitely often; behaviour that is markedly distinct from super-linear preferential attachment models studied in the literature so far.
We consider an expanding population on the plane. The genealogy of a sample from the population is modelled by coalescing Brownian motion on the circle. We establish a weak law of large numbers for the site frequency spectrum in this model. A parallel result holds for a localized version where the genealogy is modelled by coalescing Brownian motion on the line.
Kingman's coalescent is a widely used process to model sample genealogies in population genetics. Recently there have been studies on the inference of quantities related to the genealogy of additional individuals given a known sample. This paper explores the recursive (or sequential) construction which is a natural way of enlarging the sample size by adding individuals one after another to the sample genealogy via individual lineages to construct the Kingman's coalescent. Although the process of successively added lineage lengths is not Markovian, we show that it contains a Markov chain which records the information of the successive largest lineage lengths and we prove a limit theorem for this Markov chain.
This study focuses on the emergence of a transnational sisterhood under three projects originating from the cooperation between groups of female comic book writers in Spain and Latin America. After the 2016 exhibition “Presentes: Autoras de Tebeo de Ayer y de Hoy” and the publication of its catalogue by Autoras de Cómic, there was a shared need to claim back the role of female or non-male authorship, and its involvement in comic book production and business. The Argentinian group Feminismo Gráfico tapped into such endeavors, and in 2019 produced “Nosotras Contamos”, a travelling exhibition and a catalogue, with a thematic and a diachronic approach. When COVID-19 broke out, Spanish and Argentinian cooperation and development institutions (Agencia Española de Cooperación Internacional y Desarrollo and Centro Cultural España Córdoba) engaged in a discussion on the previous experiences. The project resulted in a publication and an online exhibition Coordenadas Gráficas (Graphic Coordinates), highlighting the work of non-male authors from Spain, Argentina, Chile, and Costa Rica. The transnational perspective of this last project extends beyond the previous national experiences and includes a meaningful selection of comic stories that, regardless of the nationality of the author, can be defined as feminist. Sexism, gender discrimination, gender violence, and sexual and reproductive rights are the shared coordinates discussed by this long list of authors, who question gender normativity from its very composition. By introducing the associative experiences that gave life to the projects and analyzing them in the international context, the study will focus on the appropriate practice of sharing knowledge to pursue a similar recognition. Moreover, based on the words of the curators and the creators, the study ultimately seeks to shed light on the production and circulation of works of collective interest, meant to recover the role of women in the history of comics.
General Works, Ethnology. Social and cultural anthropology
Family genealogy is well-positioned to explore the significance of burial and death, particularly as it relates to one’s connection to ancestors. Doing genealogical research involves visiting the land of the dead, treasuring information, heirlooms, and documents providing evidence about the life of an ancestor, and often revealing a presence of and interaction with the ancestor. Burial is not only associated with the essence of humanity, and coeval with historical consciousness, but it is also essentially connected with genealogy. One may argue that historical consciousness is founded on awareness of and practices bearing on genealogical and ancestral relations. After briefly listing points related to burial and mortuary practices, the article discusses Western philosophers beginning with Plato to show the dual emphases of concern for personal mortality and death of the other. It focuses on death of the other as being able to explain funerary practices and as amenable to genealogy. Next, a brief examination of Freud’s uncanny and of Abraham and Torok’s transgenerational psychology constructed on evidence of the unconscious phantom lead to the spectral turn instituted by Derrida. The article is rounded out with a consideration of the metatextuality of Gilgamesh and the Odyssey epics. Both involve a visit by the living to the land of the dead. Both are textual, placing unwritten stress on the critical role of writing.
Genealogy is one of the most popular sociocultural pursuits in modern U.S. history. During recent decades, scholars of the history of American genealogy and family history have forwarded an argument that its development since the 19th century is characterized by “democratization”. Surveying the scholarship, this article critically examines what that argument really means, what it unveils about historical change, and what it does not adequately recognize. The article argues that “democratization” is inadequate for making precise explanations about historical causes, causalities, and consequences. As an alternative to the democratization argument, it is suggested that research on the history of American genealogy should be inspired by recent studies of contemporary genealogy by sociologists, anthropologists, and cultural geographers, as well as by philosophical studies on the human longing for ancestry. By doing so, it becomes possible to engage with the crucial question of power in the historical inquiry. This approach is explored through the genealogical work of the Church of Jesus Christ of Latter-day Saints. Rather than looking at genealogy through the lens of grassroots individuals, we need to acknowledge the connection between personal longing for ancestry and the ways in which powerful organizations, institutions, media, and businesses have sought to capitalize on this longing.
We propose a general framework for the study of the genealogy of neutral discrete-time populations. We remove the standard assumption of exchangeability of offspring distributions appearing in Cannings' models, and replace it by a less restrictive condition of non-heritability of reproductive success. We provide a general criterion for the weak convergence of their genealogies to $Ξ$-coalescents, and apply it to a simple parametrization of our scenario (which, under mild conditions, we also prove to essentially include the general case). We provide examples for such populations, including models with highly-asymmetric offspring distributions and populations undergoing random but recurrent bottlenecks. Finally we study the limit genealogy of a new exponential model which, as previously shown for related models and in spite of its built in (fitness) inheritance mechanism, can be brought into our setting.
The article discusses the sources used by the national Lithuanian historian Simonas Daukantas (1793–1864) which determined the inclusion of Odin in the ranks of Lithuanian/Baltic cultural heroes in the work BUDĄ Senowęs-Lëtuwiû Kalnienû ĩr Ƶámajtiû (en. The Character of the Ancient Lithuanians–Highlanders and Lowlanders, 1845). The first source discussed is the article “De l’ère primitive des législations sacerdotales” (“On the legislative power of the priests of primeval times”) published in the magazine “Le Catholique” in 1826, on which S. Daukantas mainly relied when discussing the figure of Odin. Upon investigation, this source does not consider Odin to be the hero of the Baltic people, either. It is speculated that S. Daukantas was impressed by the laconic biography of Odin and the note added at the end that the royal families of Saxony and Denmark, the Merovingian dynasty and the Lombard princes included Odin in their genealogy. S. Daukantas analogously states that Odin is also a Lithuanian hero because, even ‘now’, there are people with the surname Odinas living in Lithuania and Samogitia. Actually, S. Daukantas’s mother was née Odinaitė.
This article further discusses two other sources: Geschichte Preußens (1827, vol. 1) by Johannes Voigt (1786–1863), and Geschichte von Littauen, Kurland und Liefland (1785) by Ludwig Albrecht Gebhardi (1735–1802). It was determined that only J. Voigt briefly indicated that Odin founded Asgard near Daugava. S. Daukantas adopted this opinion in his work.
On February 12, 1845, in a letter to Teodoras Narbutas (1784–1864), S. Daukantas reproached him for not including Odin in the ranks of Lithuanian cultural heroes and mentioned Le Catholique and Jntrodukcyi Maleta do historyi Dunskiej as important sources for the research pertaining to the possible Baltic origins of Odin. This inspires a hypothesis that S. Daukantas made a mistake in specifying the name of the Swiss-born historian Paul Henri Mallet because he did not write about Odin as a Lithuanian/Baltic hero in his work on Danish history. The article investigates which author’s introduction to a book on Danish history led S. Daukantas to a belief that he found information about the Lithuanian/Baltic Odin. It must have been an authoritative historian because S. Daukantas did not change his opinion about Odin when he wrote Pasakojimas apej Wejkałus Lietuwiû tautos senowie (Stories about Events in Ancient Lithuania, 1850) and emphasized that Northern writers refer to Odin as having lived and worked in Lithuania. After getting acquainted with Peter Friedrich Suhm’s introduction (Einleitung oder kritische Muthmaſsungen über die teste Abstammung und Geschichte der Nordischen Nation) to Geschichte der Dänen (1803), the study reaches the conclusion that it determined S. Daukantas’s decision about Odin’s Baltic origins. It is likely that an interdisciplinary study of the figure of Odin would finally allow us to confirm or reject this belief of S. Daukantas.
Bibliography. Library science. Information resources
Stefano Raimondi, Francesco Candeliere, Alberto Amaretti
et al.
Leuconostoc is a genus of saccharolytic heterofermentative lactic acid bacteria that inhabit plant-derived matrices and a variety of fermented foods (dairy products, dough, milk, vegetables, and meats), contributing to desired fermentation processes or playing a role in food spoilage. At present, the genus encompasses 17 recognized species. In total, 216 deposited genome sequences of Leuconostoc were analyzed, to check the delineation of species and to infer their evolutive genealogy utilizing a minimum evolution tree of Average Nucleotide Identity (ANI) and the core genome alignment. Phylogenomic relationships were compared to those obtained from the analysis of 16S rRNA, pheS, and rpoA genes. All the phylograms were subjected to split decomposition analysis and their topologies were compared to check the ambiguities in the inferred phylogenesis. The minimum evolution ANI tree exhibited the most similar topology with the core genome tree, while single gene trees were less adherent and provided a weaker phylogenetic signal. In particular, the 16S rRNA gene failed to resolve several bifurcations and Leuconostoc species. Based on an ANI threshold of 95%, the organization of the genus Leuconostoc could be amended, redefining the boundaries of the species L. inhae, L. falkenbergense, L. gelidum, L. lactis, L. mesenteroides, and L. pseudomesenteroides. Two strains currently recognized as L. mesenteroides were split into a separate lineage representing a putative species (G16), phylogenetically related to both L. mesenteroides (G18) and L. suionicum (G17). Differences among the four subspecies of L. mesenteroides were not pinpointed by ANI or by the conserved genes. The strains of L. pseudomesenteroides were ascribed to two putative species, G13 and G14, the former including also all the strains presently belonging to L. falkenbergense. L. lactis was split into two phylogenetically related lineages, G9 and G10, putatively corresponding to separate species and both including subgroups that may correspond to subspecies. The species L. gelidum and L. gasicomitatum were closely related but separated into different species, the latter including also L. inhae strains. These results, integrating information of ANI, core genome, and housekeeping genes, complemented the taxonomic delineation with solid information on the phylogenetic lineages evolved within the genus Leuconostoc.
Sociolinguists suggest language death entails significant cultural, personal, and ecological loss. Socio-cultural and socio-political factors exacerbate language erosion and encourage supplantation by another more dominant language. Hence, we ask: what are the sociocognitive principles which make language death hurtful and symbolic? Within this article, we attempt to outline a sociocognitive account of language death, situating the Hallidayan perspective of language as a “social-semiotic” system alongside a Cognitive Linguistic approach. We further contextualise language as inseparable from culture, drawing insight from the sociological thought of Bourdieu. We contend that language death entails psychological trauma, representing the destruction of cultural genealogy and the loss of knowledge intrinsic to personal self-imagery and identity. To this end, we present a case study of the Māori languaculture in Aotearoa (New Zealand), tracing the impact of colonialism and marginalisation to current efforts and ambitions to ensure the languacultural survival of Māori and reclaim space in Aotearoa as a respected knowledge system and means of expression, particularly in the socio-technical age of artificial intelligence (AI) and the Web. We argue that our analysis bodes practical implications for language maintenance and revitalisation, concluding that sociolinguistic practitioners should consider a socio-cognitivist as well as socio-technical paradigm for language intervention. In closing, we discuss leveraging AI technologies towards language heritage, archival, and preservation to limit the destructive impact of the death of a language.
Special aspects of education, Geography. Anthropology. Recreation