The evolutionary neuroscience of domestication Hecht, Erin E.; Barton, Sophie A.; Rogers Flattery, Christina N. ...
Trends in cognitive sciences,
June 2023, 2023-06-00, 20230601, Volume:
27, Issue:
6
Journal Article
Peer reviewed
Understanding how brain organization gives rise to behavior in domesticated animals has real-world practical value as well as fundamental relevance for our understanding of the place of humans in the ...animal kingdom.Despite this, neuroscience research on domestication remains largely unconnected across species and unintegrated with conceptual frameworks on brain evolution.Brain change in domestication is governed by the same principles as brain change in evolution generally, including interactions between drivers and constraints, as well as between mosaic and concerted modes of change.We review recent findings on patterns of brain change across domesticated species and provide a framework for identifying and addressing unanswered questions and alternative hypotheses.
How does domestication affect the brain? This question has broad relevance. Domesticated animals play important roles in human society, and substantial recent work has addressed the hypotheses that a domestication syndrome links phenotypes across species, including Homo sapiens. Surprisingly, however, neuroscience research on domestication remains largely disconnected from current knowledge about how and why brains change in evolution. This article aims to bridge that gap. Examination of recent research reveals some commonalities across species, but ultimately suggests that brain changes associated with domestication are complex and variable. We conclude that interactions between behavioral, metabolic, and life-history selection pressures, as well as the role the role of experience and environment, are currently largely overlooked and represent important directions for future research.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
Bacteria and fungi behind cheese, soy, and more share genomic traits wth domesticated plants and animals
Bacteria and fungi behind cheese, soy, and more share genomic traits wth domesticated plants ...and animals
It is difficult to overstate the cultural and biological impacts that the domestication of plants and animals has had on our species. Fundamental questions regarding where, when, and how many times ...domestication took place have been of primary interest within a wide range of academic disciplines. Within the last two decades, the advent of new archaeological and genetic techniques has revolutionized our understanding of the pattern and process of domestication and agricultural origins that led to our modern way of life. In the spring of 2011, 25 scholars with a central interest in domestication representing the fields of genetics, archaeobotany, zooarchaeology, geoarchaeology, and archaeology met at the National Evolutionary Synthesis Center to discuss recent domestication research progress and identify challenges for the future. In this introduction to the resulting Special Feature, we present the state of the art in the field by discussing what is known about the spatial and temporal patterns of domestication, and controversies surrounding the speed, intentionality, and evolutionary aspects of the domestication process. We then highlight three key challenges for future research. We conclude by arguing that although recent progress has been impressive, the next decade will yield even more substantial insights not only into how domestication took place, but also when and where it did, and where and why it did not.
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Bonomo, Mariano, Francisco aceituno BocanegRa, Gustavo politis y María Lelia pochettino 2011 «Pre-hispanic horticulture in the Paraná Delta (Argentina): archaeological and historical evidence». ...Chungara 42 (2): 497-513. gil, Adolfo, Ricardo villalBa, Andrew ugan, Valeria coRtegoso, Gustavo neme, Catalina michieli, Paula novellino y Víctor duRán 2014 «Isotopic Evidence on Human Bone for Declining Maize Consumption during the Little Ice Age in Central Western Argentina». Córdoba: Editorial Brujas. laguens, Andrés, Mariana FaBRa, Guaciara santos y Darío demaRchi 2009 «Palaeodietary Inferences Based on Isotopic Data for Pre-Hispanic Populations of the Central Mountains of Argentina». International Journal of Osteoarchaeology 19: 237-249. lema, Verónica 2011 «The Possible Influence of Post-Harvest Objectives on Cucurbita maxima Subspecies maxima and Subspecies andreana Evolution under Cultivation at the Argentinian Northwest: An Archaeological Example».
Domestic animals have lived with humans for thousands of years and remain essential to the everyday lives of people throughout the world. In this book, Natasha Fijn examines the process of animal ...domestication in a study that blends biological and social anthropology, ethology and ethnography. She examines the social behavior of humans and animals in a contemporary Mongolian herding society. After living with Mongolian herding families, Dr Fijn has observed through firsthand experience both sides of the human-animal relationship. Examining their reciprocal social behavior and communication with one another, she demonstrates how herd animals influence Mongolian herders' lives and how the animals themselves are active partners in the domestication process.
Beer is one of the oldest alcoholic beverages and is produced by the fermentation of sugars derived from starches present in cereal grains. Contrary to lager beers, made by bottom-fermenting strains ...of Saccharomyces pastorianus, a hybrid yeast, ale beers are closer to the ancient beer type and are fermented by S. cerevisiae, a top-fermenting yeast. Here, we use population genomics to investigate (1) the closest relatives of top-fermenting beer yeasts; (2) whether top-fermenting yeasts represent an independent domestication event separate from those already described; (3) whether single or multiple beer yeast domestication events can be inferred; and (4) whether top-fermenting yeasts represent non-recombinant or recombinant lineages. Our results revealed that top-fermenting beer yeasts are polyphyletic, with a main clade composed of at least three subgroups, dominantly represented by the German, British, and wheat beer strains. Other beer strains were phylogenetically close to sake, wine, or bread yeasts. We detected genetic signatures of beer yeast domestication by investigating genes previously linked to brewing and using genome-wide scans. We propose that the emergence of the main clade of beer yeasts is related with a domestication event distinct from the previously known cases of wine and sake yeast domestication. The nucleotide diversity of the main beer clade more than doubled that of wine yeasts, which might be a consequence of fundamental differences in the modes of beer and wine yeast domestication. The higher diversity of beer strains could be due to the more intense and different selection regimes associated to brewing.
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•Top-fermenting beer yeast domestication is distinct from wine yeast domestication•Beer strains of Saccharomyces cerevisiae are polyphyletic, contrary to wine strains•Beer strains are more diverse than wine yeasts, even considering only the main clade•Beer strains have distinctive genomic signatures of domestication
How different are S. cerevisiae strains used to produce top-fermented (ale-type) beer and wine? Gonçalves et al. show that on a genome-wide scale, they are clearly discernible, beer strains being more diverse and clustering according to beer type. Moreover, domestication signatures related to brewing were found to distinguish beer and wine strains.
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GEOZS, IJS, IMTLJ, KILJ, KISLJ, NLZOH, NUK, OILJ, PNG, SAZU, SBCE, SBJE, UILJ, UL, UM, UPCLJ, UPUK, ZAGLJ, ZRSKP
Ecology and Evolution of Plant Microbiomes Cordovez, Viviane; Dini-Andreote, Francisco; Carrión, Víctor J ...
Annual review of microbiology,
09/2019, Volume:
73, Issue:
1
Journal Article
Peer reviewed
Open access
Microorganisms colonizing plant surfaces and internal tissues provide a number of life-support functions for their host. Despite increasing recognition of the vast functional capabilities of the ...plant microbiome, our understanding of the ecology and evolution of the taxonomically hyperdiverse microbial communities is limited. Here, we review current knowledge of plant genotypic and phenotypic traits as well as allogenic and autogenic factors that shape microbiome composition and functions. We give specific emphasis to the impact of plant domestication on microbiome assembly and how insights into microbiomes of wild plant relatives and native habitats can contribute to reinstate or enrich for microorganisms with beneficial effects on plant growth, development, and health. Finally, we introduce new concepts and perspectives in plant microbiome research, in particular how community ecology theory can provide a mechanistic framework to unravel the interplay of distinct ecological processes-i.e., selection, dispersal, drift, diversification-that structure the plant microbiome.
Domesticated food crops are derived from a phylogenetically diverse assemblage of wild ancestors through artificial selection for different traits. Our understanding of domestication, however, is ...based upon a subset of well-studied ‘model’ crops, many of them from the Poaceae family. Here, we investigate domestication traits and theories using a broader range of crops. We reviewed domestication information (e.g. center of domestication, plant traits, wild ancestors, domestication dates, domestication traits, early and current uses) for 203 major and minor food crops. Compiled data were used to test classic and contemporary theories in crop domestication. Many typical features of domestication associated with model crops, including changes in ploidy level, loss of shattering, multiple origins, and domestication outside the native range, are less common within this broader dataset. In addition, there are strong spatial and temporal trends in our dataset. The overall time required to domesticate a species has decreased since the earliest domestication events. The frequencies of some domestication syndrome traits (e.g. nonshattering) have decreased over time, while others (e.g. changes to secondary metabolites) have increased. We discuss the influences of the ecological, evolutionary, cultural and technological factors that make domestication a dynamic and ongoing process.
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Rice (Oryza sativa) is one of the most important cereal grains in the world today and serves as a staple food source for more than half of the world’s population. Research into when, where, and how ...rice was brought into cultivation and eventually domesticated, along with its development into a staple food source, is thus essential. These questions have been a point of nearly continuous research in both archaeology and genetics, and new information has continually come to light as theory, data acquisition, and analytical techniques have advanced over time. Here, we review the broad history of our scientific understanding of the rice domestication process from both an archaeological and genetic perspective and examine in detail the information that has come to light in both of these fields in the last 10 y. Current findings from genetics and archaeology are consistent with the domestication of O. sativa japonica in the Yangtze River valley of southern China. Interestingly, although it appears rice was cultivated in the area by as early 8000 BP, the key domestication trait of nonshattering was not fixed for another 1,000 y or perhaps longer. Rice was also cultivated in India as early as 5000 BP, but the domesticated indica subspecies currently appears to be a product of the introgression of favorable alleles from japonica . These findings are reshaping our understanding of rice domestication and also have implications for understanding the complex evolutionary process of plant domestication.
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Early millet use in northern China Yang, Xiaoyan; Wan, Zhiwei; Perry, Linda ...
Proceedings of the National Academy of Sciences,
03/2012, Volume:
109, Issue:
10
Journal Article
Peer reviewed
Open access
It is generally understood that foxtail millet and broomcorn millet were initially domesticated in Northern China where they eventually became the dominant plant food crops. The rarity of older ...archaeological sites and archaeobotanical work in the region, however, renders both the origins of these plants and their processes of domestication poorly understood. Here we present ancient starch grain assemblages recovered from cultural deposits, including carbonized residues adhering to an early pottery sherd as well as grinding stone tools excavated from the sites of Nanzhuangtou (11.5–11.0 cal kyBP) and Donghulin (11.0–9.5 cal kyBP) in the North China Plain. Our data extend the record of millet use in China by nearly 1,000 y, and the record of foxtail millet in the region by at least two millennia. The patterning of starch residues within the samples allow for the formulation of the hypothesis that foxtail millets were cultivated for an extended period of two millennia, during which this crop plant appears to have been undergoing domestication. Future research in the region will help clarify the processes in place.
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