Comparative Population Genomics Reveal the Determinants of Genome Erosion in Two Sympatric Neotropical Falcons

Molecular Ecology, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 3, 2025

Studying genetic diversity in endangered species has become an important component of conservation science over the past decades. Thanks to recent developments sequencing technologies and bioinformatics, parameters relevance such as neutral functional genome‐wide variation are now routinely estimated. Since inbreeding deleterious mutations represent significant threats small declining populations, assessing dynamics these received particular attention many genomics studies. In this issue Molecular Ecology, Martin et al. analyse genomes two Neotropical falcon assess impact their contrasting population histories on diversity. They show that Orange‐breasted which had a low long‐term size experienced bottlenecks is more inbred but relatively fewer variations compared its sister taxon, Bat falcon, characterised by larger size. This study not only provides insights into role demography with also highlights increasing importance comparative approaches genomics.

Language: Английский

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The genomic landscape of spider monkeys and northern muriquis from a conservation perspective

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2025, Volume and Issue: unknown

Published: March 10, 2025

Abstract Background Most populations of spider monkeys ( Ateles ) and muriquis Brachyteles ), two Neotropical primate genera, are under severe anthropogenic threats. Yet, taxon-wide population-level studies leveraging their degree endangerment linked to genetic diversity patterns demographic history lacking. To properly address this, there is a need expand from morphological marker-based studies. Results We generated high-coverage genome sequencing for 58 individuals sampled across 8 Atelidae species, in the first population-wide study all extant monkey wild captivity, alongside northern hypoxanthus ). Additionally, we present high-contiguity reference hybridus . Here, observe overall levels load analyzed do not align IUCN category. Moreover, show that wild, higher compared captive analyzed. Then, depict main trans cis-Andean sister clades , further structure dynamics outlined by Madeira River latter clade. Lastly, find genes highly divergent regions between B. involved central nervous system development photorreception. Conclusions Our shows i) lack concordance extinction risk these populations, suggestive recent strong external drivers; ii) increased contrast effective management, indicating mostly past events; iii) agrees with common biogeographical iv) divergence potentially distinct environmental light levels.

Language: Английский

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To genetic rescue or not?

Trends in Genetics, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 1, 2024

Inbreeding depression and genetic rescue are central themes in conservation biology. Translocation is a tool to assist but connected risks. A new study by Quinn et al. used genomic data evaluate translocations as potential action montane red fox, bringing important implications also for other threatened species.

Language: Английский

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