@ARTICLE{TreeBASE2Ref23874,
author = {Glenn Litsios and Nicolas Salamin},
title = {Hybridisation and diversification in the adaptive radiation of clownfishes},
year = {2014},
keywords = { syngameon, speciation, diversification, cytonuclear discordance, anemonefish},
doi = {},
url = {http://},
pmid = {},
journal = {BMC Evolutionary Biology},
volume = {},
number = {},
pages = {},
abstract = {The importance of hybridisation during species diversification has long been debated
among evolutionary biologists. It is increasingly recognised that hybridisation events
occurred during the evolutionary history of numerous species, especially during the early
stages of adaptive radiation. We study the effect of hybridisation on diversification in the
clownfishes, a clade of coral reef fish that diversified through an adaptive radiation
process. While two species of clownfish are likely to have been described from hybrid
specimens, the occurrence and effect of hybridisation on the clade diversification is yet
unknown. We generate sequences of three mitochondrial genes to complete an existing dataset of
nuclear sequences and document cytonuclear discordance at a node, which shows a
drastic increase of diversification rate. Then, using a tree-based jack-knife method, we
identify clownfish species likely stemming from hybridisation events. Finally, we use
molecular cloning and identify the putative parental species of four clownfish specimens
that display the morphological characteristics of hybrids.
Our results show that consistently with the syngameon hypothesis, hybridisation events
are linked with a burst of diversification in the clownfishes. Moreover, several recently
diverged clownfish lineages likely originated through hybridisation, which indicates that
diversification, catalysed by hybridisation events, may still be happening.
}
}
Taxa for Study 16652
Citation title:
"Hybridisation and diversification in the adaptive radiation of clownfishes".
Study name:
"Hybridisation and diversification in the adaptive radiation of clownfishes".
This study is part of submission 16652
(Status: Published).
Taxa