Publications by authors named "Aude Perdereau"
Article Synopsis
- The horse family (equids) has a rich fossil record showing significant evolutionary changes over the last 55 million years, with a wealth of ancient genomes sequenced to understand their domestication history.
- This study generated genome-wide data from 25 ancient equid specimens spanning 44,000 years in regions like Anatolia and Mongolia, revealing the presence of extinct species and new insights into their survival.
- The research also identified genetic differences among Asian wild asses and a common genetic signature in wild asses across continents, raising questions about the role of specific genetic changes in the extinction of certain equid species.
Article Synopsis
- The NEREA initiative focuses on creating an augmented observatory in the Gulf of Naples to improve our understanding of marine ecosystems through a comprehensive approach.
- It combines traditional research methods with advanced techniques like metabarcoding and metagenomics, building on past expeditions and research sites.
- In its first 10 months (April 2019 to January 2020), NEREA collected extensive data on physical and chemical parameters, plankton biodiversity, and genetics, resulting in significant insights into marine ecosystems.
Article Synopsis
- - Horses transformed human mobility, but the timeline of their domestication and integration as transport is debated, with new genetic data being used to clarify this history.
- - Analysis of 475 ancient horse genomes indicates that modern domestic horses were shaped by human intervention around 2200 BCE, after a domestication bottleneck began around 2700 BCE, leading to a significant expansion across Eurasia.
- - Evidence also suggests that there was early horse husbandry in central Asia at Botai around 3500 BCE, prior to the establishment of contemporary horse bloodlines, challenging the notion of large herds being linked to migrations around 3000 BCE.
Article Synopsis
- Scientists studied the DNA of 430 horses from 73 breeds to learn about changes in horse genes over time.
- They looked at special horses, like Clydesdales and Thoroughbreds, to see how modern horses are related to famous historical horses.
- The research showed that some modern horses are more closely related to ancient horses, but there has also been a lot of inbreeding, which is when closely related horses breed together.
Coral reef science is a fast-growing field propelled by the need to better understand coral health and resilience to devise strategies to slow reef loss resulting from environmental stresses. Key to coral resilience are the symbiotic interactions established within a complex holobiont, i.e.
View Article and Find Full Text PDFCoral reefs are among the most diverse ecosystems on Earth. They support high biodiversity of multicellular organisms that strongly rely on associated microorganisms for health and nutrition. However, the extent of the coral reef microbiome diversity and its distribution at the oceanic basin-scale remains to be explored.
View Article and Find Full Text PDFSexual breeding at the tetraploid level is a promising strategy for rootstock breeding in citrus. Due to the interspecific origin of most of the conventional diploid citrus rootstocks that produced the tetraploid germplasm, the optimization of this strategy requires better knowledge of the meiotic behavior of the tetraploid parents. This work used Genotyping By Sequencing (GBS) data from 103 tetraploid hybrids to study the meiotic behavior and generate a high-density recombination landscape for their tetraploid intergenic Swingle citrumelo and interspecific Volkamer lemon progenitors.
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- Horses played a crucial role in Indigenous cultures in the American Southwest and Great Plains, but the timeline and methods of their integration remain debated.
- A study analyzing historic horse remains combined genomic, isotopic, and other evidence, revealing strong genetic ties to Iberian horses, with later British influences.
- By the early 17th century, horses were widely adopted in Indigenous societies, impacting herd management, ceremonies, and cultural practices before European observers arrived in the 18th century.
Article Synopsis
- Scientists study old animal bones to learn how people took care of animals a long time ago, but it’s hard because the bones are often broken and there aren’t clear signs of age.
- *Using a special method called DNA methylation clocks, researchers can figure out how old some ancient animals were when they died.
- *They also looked at DNA to understand if horses were castrated in the past, which helps reveal more about how people managed animals and their lives a long time ago.
Article Synopsis
- Donkeys played a crucial role in human history as reliable transport animals, especially in tough terrains, yet their significance is not thoroughly researched.
- A study analyzed the genomes of 207 modern and 31 ancient donkeys, revealing that they were domesticated in Africa around 5000 BCE, with subsequent expansions across Africa and Eurasia.
- The research discovered a new genetic lineage from the Levant around 200 BCE, which contributed to donkey ancestry in Asia, highlighting the historical importance of donkeys in economies, particularly during the Roman era when mules were vital.
Hydrothermal vents form archipelagos of ephemeral deep-sea habitats that raise interesting questions about the evolution and dynamics of the associated endemic fauna, constantly subject to extinction-recolonization processes. These metal-rich environments are coveted for the mineral resources they harbour, thus raising recent conservation concerns. The evolutionary fate and demographic resilience of hydrothermal species strongly depend on the degree of connectivity among and within their fragmented metapopulations.
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- The domestication of horses significantly changed mobility and warfare, but modern breeds do not trace back to the earliest domestic horses found in Central Asia around 3500 BC.
- Research reestablishes the Western Eurasian steppes, particularly the lower Volga-Don area, as the origin of modern domestic horses, based on genetic analysis from 273 ancient horse genomes.
- The study finds that the spread of modern domestic horses around 2000 BC coincided with the emergence of equestrian cultures, refuting the idea that horseback riding was linked to the expansion of Yamnaya pastoralists in Europe.
Chromosome rearrangements and the way that they impact genetic differentiation and speciation have long raised questions from evolutionary biologists. They are also a major concern for breeders because of their bearing on chromosome recombination. Banana is a major crop that derives from inter(sub)specific hybridizations between various once geographically isolated Musa species and subspecies.
View Article and Find Full Text PDFThe bio-economy relies on microbial strains optimized for efficient large scale production of chemicals and fuels from inexpensive and renewable feedstocks under industrial conditions. The reduced one carbon compound methanol, whose production does not involve carbohydrates needed for the feed and food sector, can be used as sole carbon and energy source by methylotrophic bacteria like AM1. This strain has already been engineered to produce various commodity and high value chemicals from methanol.
View Article and Find Full Text PDFBackground: Salix caprea is a cold-tolerant pioneer species that is ecologically important in Europe and western and central Asia. However, little data is available on its population genetic structure and molecular ecology. We describe the levels of geographic population genetic structure in natural Irish populations of S.
View Article and Find Full Text PDFBackground: Little is known about the levels of variation in lignin or other wood related genes in Salix, a genus that is being increasingly used for biomass and biofuel production. The lignin biosynthesis pathway is well characterized in a number of species, including the model tree Populus. We aimed to transfer the genomic resources already available in Populus to its sister genus Salix to assess levels of variation within genes involved in wood formation.
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