Speciation in the Peninsular Indian Flying Lizard (Draco dussumieri) Follows Climatic Transition and Not Physical Barriers DOI Creative Commons
R. CHAITANYA, Aranya Dhibar, Akshay Khandekar

и другие.

Molecular Ecology, Год журнала: 2025, Номер unknown

Опубликована: Май 20, 2025

ABSTRACT Marked with high levels of endemism and in situ radiations, the Western Ghats mountains make for a compelling backdrop to examine processes that lead formation maintenance species. Regional geographic barriers paleoclimatic fluctuations have been implicated as drivers speciation, but their roles not explicitly tested phylogenomic framework. We integrated mitochondrial DNA, genome‐wide SNPs climatic data influence transitions shaping phylogeography potential speciation Peninsular Indian Flying lizard ( Draco dussumieri ). found strong evidence two independently evolving, geographically distinct, northern southern lineages within D. diverged during early Pleistocene, gradient admixed populations across broad hybrid zone Central Ghats. Migrations after initial divergence were continuous, gene flow remained consistently below thresholds required homogenise lineages. more support isolation by environment (especially rainfall regimes) than distance. The range‐break between occurs at transition separates dissimilar regimes no physical barriers. This limit is potentially an ecological barrier, which nevertheless was permeable glacial maxima. hypothesise similar phylogeographic patterns will emerge other widespread, wet‐adapted species presumably endured same processes.

Язык: Английский

Population genetics reveal potential threats from low maternal genetic diversity in wild Asian elephants in China DOI Creative Commons
Minhui Shi, Yinping Tian,

Yongjing Tang

и другие.

Global Ecology and Conservation, Год журнала: 2025, Номер unknown, С. e03503 - e03503

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

0
Island size shapes genomic diversity in a great speciator (Aves: Zosterops ) DOI Creative Commons
Ethan F. Gyllenhaal, Michael J. Andersen, Robert G. Moyle

и другие.

Biology Letters, Год журнала: 2025, Номер 21(3)

Опубликована: Март 1, 2025

Islands have long represented natural laboratories for studying many aspects of ecology and evolutionary biology, from speciation to community assembly. One aspect that has been well documented is the correlation between island size taxonomic diversity, likely due decreased complexity population on small islands. This same logic can apply genetic which should predictably decrease with effective size. The size-diversity received support over years but often focuses single metrics diversity. Here, we use Zosterops white-eyes in Solomon study various related including runs homozygosity fixation transposable elements. We find almost all these strongly correlate size, turn each other. infer independently correlated different variables, demonstrating impacts genomic diversity a variety ways across temporal hierarchical scales.

Язык: Английский

Процитировано

0
Speciation in the Peninsular Indian Flying Lizard (Draco dussumieri) Follows Climatic Transition and Not Physical Barriers DOI Creative Commons
R. CHAITANYA, Aranya Dhibar, Akshay Khandekar

и другие.

Molecular Ecology, Год журнала: 2025, Номер unknown

Опубликована: Май 20, 2025

ABSTRACT Marked with high levels of endemism and in situ radiations, the Western Ghats mountains make for a compelling backdrop to examine processes that lead formation maintenance species. Regional geographic barriers paleoclimatic fluctuations have been implicated as drivers speciation, but their roles not explicitly tested phylogenomic framework. We integrated mitochondrial DNA, genome‐wide SNPs climatic data influence transitions shaping phylogeography potential speciation Peninsular Indian Flying lizard ( Draco dussumieri ). found strong evidence two independently evolving, geographically distinct, northern southern lineages within D. diverged during early Pleistocene, gradient admixed populations across broad hybrid zone Central Ghats. Migrations after initial divergence were continuous, gene flow remained consistently below thresholds required homogenise lineages. more support isolation by environment (especially rainfall regimes) than distance. The range‐break between occurs at transition separates dissimilar regimes no physical barriers. This limit is potentially an ecological barrier, which nevertheless was permeable glacial maxima. hypothesise similar phylogeographic patterns will emerge other widespread, wet‐adapted species presumably endured same processes.

Язык: Английский

Процитировано

0