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1.
Between but not within-species variation in the distribution of fitness effects
Jennifer James, Chedly Kastallya, Katharina Budde, Santiago C. González-Martínez, Pascal Milesi, Tanja Pyhäjärvi, Martin Lascoux, 2023, izvirni znanstveni članek

Povzetek: New mutations provide the raw material for evolution and adaptation. The distribution of fitness effects (DFE) describes the spectrum of effects of new mutations that can occur along a genome, and is, therefore, of vital interest in evolutionary biology. Recent work has uncovered striking similarities in the DFE between closely related species, prompting us to ask whether there is variation in the DFE among populations of the same species, or among species with different degrees of divergence, that is whether there is variation in the DFE at different levels of evolution. Using exome capture data from six tree species sampled across Europe we characterized the DFE for multiple species, and for each species, multiple populations, and investigated the factors potentially influencing the DFE, such as demography, population divergence, and genetic background. We find statistical support for the presence of variation in the DFE at the species level, even among relatively closely related species. However, we find very little difference at the population level, suggesting that differences in the DFE are primarily driven by deep features of species biology, and those evolutionarily recent events, such as demographic changes and local adaptation, have little impact.
Ključne besede: DFE, deleterious mutations, population structure, forest trees
Objavljeno v DiRROS: 12.12.2023; Ogledov: 203; Prenosov: 86
.pdf Celotno besedilo (1,15 MB)
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2.
Gene sequence variation data for the publication "Synchronous effective population size changes and genetic stability of forest trees through glacial cycles" : version 1.0
Tanja Pyhäjärvi, Francesca Bagnoli, Katharina Budde, Stephen Cavers, Sandra Cervantes, Benjamin Dauphin, Bruno Fady, Patricia Faivre-Rampant, Santiago C. González-Martínez, Delphine Grivet, Felix Gugerli, Véronique Jorge, Chedly Kastallya, Martin Lascoux, Isabelle Lesur Kupin, Pascal Milesi, Dario I. Ojeda, Sanna Olsson, Lars Opgenoorth, Sara Pinosio, Christophe Plomion, Christian Rellstab, Odile Rogier, Simone Scalabrin, Ivan Scotti, Giovanni G Vendramin, Marjana Westergren, 2023, zaključena znanstvena zbirka raziskovalnih podatkov

Povzetek: This dataset contains the gene sequence variation data (vcf files and their tbi index files) of seven forest tree species used in the manuscript "Synchronous effective population size changes and genetic stability of forest trees through glacial cycles". For each species, between 411 and 651 genotyped trees are included, sampled across Europe in at least 20 locations. Several versions are provided. Species included: Pinus sylvestris, Picea abies, Fagus sylvatica, Populus nigra, Quercus petraea, Pinus pinaster, Betula pendula
Ključne besede: gene sequence, variation data, data set
Objavljeno v DiRROS: 07.03.2023; Ogledov: 527; Prenosov: 520
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