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Phylogeography of the woolly mammoth (Mammuthus primigenius) in the Minusinsk Depression of southern Siberia in the Late Pleistocene.
Vavilovskii Zhurnal Genet Selektsii
September 2024
Institute of Molecular and Cellular Biology of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia Institute of Archaeology and Ethnography, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia.
To date, a number of studies have been published on the phylogenetics of woolly mammoths (Mammuthus primigenius), ranging from analyses of parts of the mitochondrial genome to studies of complete nuclear genomes. However, until recently nothing was known about the genetic diversity of woolly mammoths in southern Siberia, in the Minusinsk Depression in particular. Within the framework of this effort, libraries for high-throughput sequencing of seven bone samples of woolly mammoths were obtained, two-round enrichment using biotinylated probes of modern mtDNA of Elephas maximus immobilised on magnetic microspheres and sequencing with subsequent bioinformatic analysis were carried out.
View Article and Find Full Text PDFPopulation genomics of seal lice provides insights into the postglacial history of northern European seals.
Mol Ecol
October 2024
Department of Ecosystems in the Barents Region, Svanhovd Research Station, Norwegian Institute of Bioeconomy Research, Svanvik, Norway.
Article Synopsis
- Genetic analyses of seal lice were conducted to explore the evolutionary history of seal populations in the Arctic Ocean and the Baltic Sea, particularly focusing on unique landlocked ringed seal populations in lakes Saimaa and Ladoga.
- The study found that lice and their seal hosts have distinct genetic profiles reflecting postglacial divergence and geological changes, indicating a correlation between louse population sizes and their seal host populations.
- Significantly, ancient gene flow between the lice from Baltic gray seals and ringed seals suggests that these populations had greater interactions in the past, highlighting how analyzing parasites can reveal intricate population dynamics of their animal hosts.
Out of and in East Asia: phylogeny, biogeography and diversification of Thalictroideae (Ranunculaceae) in the Northern Hemisphere.
Ann Bot
December 2024
State Key Laboratory of Plant Diversity and Specialty Crops, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China.
Background And Aims: Understanding the biogeographical patterns and processes underlying the distribution of diversity within the Northern Hemisphere has fascinated botanists and biogeographers for over a century. However, as a well-known centre of species diversity in the Northern Hemisphere, whether East Asia acted as a source and/or a sink of plant diversity of the Northern Hemisphere remains unclear. Here, we used Thalictroideae, a subfamily widely distributed in the Northern Hemisphere with the majority of species in East Asia, to investigate the role of East Asia in shaping the biogeographical patterns of the Northern Hemisphere and to test whether East Asia acted as a museum or a cradle for herbaceous taxa.
View Article and Find Full Text PDFHigh dispersal ability versus migratory traditions: Fine-scale population structure and post-glacial colonisation in bar-tailed godwits.
Mol Ecol
August 2024
MiVEGEC, CNRS, IRD, University of Montpellier, Montpellier, France.
In migratory animals, high mobility may reduce population structure through increased dispersal and enable adaptive responses to environmental change, whereas rigid migratory routines predict low dispersal, increased structure, and limited flexibility to respond to change. We explore the global population structure and phylogeographic history of the bar-tailed godwit, Limosa lapponica, a migratory shorebird known for making the longest non-stop flights of any landbird. Using nextRAD sequencing of 14,318 single-nucleotide polymorphisms and scenario-testing in an Approximate Bayesian Computation framework, we infer that bar-tailed godwits existed in two main lineages at the last glacial maximum, when much of their present-day breeding range persisted in a vast, unglaciated Siberian-Beringian refugium, followed by admixture of these lineages in the eastern Palearctic.
View Article and Find Full Text PDFWhole-genome analysis reveals phylogenetic and demographic history of Eurasian perch.
J Fish Biol
September 2024
Institute of Veterinary Medicine and Animal Sciences, Chair of Aquaculture, Estonian University of Life Sciences, Tartu, Estonia.
The contemporary diversity and distribution of species are shaped by their evolutionary and ecological history. This can be deciphered with the help of phylogenetic and demographic analysis methods, ideally combining and supplementing information from mitochondrial and nuclear genomes. In this study, we investigated the demographic history of Eurasian perch (Perca fluviatilis), a highly adaptable teleost with a distribution range across Eurasia.
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