Phylogenomics of the killer whale indicates ecotype divergence in sympatry
نویسندگان
چکیده
منابع مشابه
Population genomics of the killer whale indicates ecotype evolution in sympatry involving both selection and drift
The evolution of diversity in the marine ecosystem is poorly understood, given the relatively high potential for connectivity, especially for highly mobile species such as whales and dolphins. The killer whale (Orcinus orca) has a worldwide distribution, and individual social groups travel over a wide geographic range. Even so, regional populations have been shown to be genetically differentiat...
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Analysing population genomic data from killer whale ecotypes, which we estimate have globally radiated within less than 250,000 years, we show that genetic structuring including the segregation of potentially functional alleles is associated with socially inherited ecological niche. Reconstruction of ancestral demographic history revealed bottlenecks during founder events, likely promoting ecol...
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چکیده ندارد.
Orcinus orca – Killer Whale
Taxonomic notes: Orcinus orca is currently considered a single, cosmopolitan species, however many populations (including some which occur sympatrically) are ecologically, genetically and morphologically distinct (Rice 1998; Ford 2009). Despite such distinction, the global genetic diversity of the species appears low at both mitochondrial and nuclear DNA markers (Hoelzel et al. 2002; Morin et a...
متن کاملEcological, morphological and genetic divergence of sympatric North Atlantic killer whale populations.
Ecological divergence has a central role in speciation and is therefore an important source of biodiversity. Studying the micro-evolutionary processes of ecological diversification at its early stages provides an opportunity for investigating the causative mechanisms and ecological conditions promoting divergence. Here we use morphological traits, nitrogen stable isotope ratios and tooth wear t...
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ژورنال
عنوان ژورنال: Heredity
سال: 2014
ISSN: 0018-067X,1365-2540
DOI: 10.1038/hdy.2014.67