Click
here to close Hello! We notice that
you are using Internet Explorer, which is not supported by Echinobase
and may cause the site to display incorrectly. We suggest using a
current version of Chrome,
FireFox,
or Safari.
Recent speciation in the Indo-West Pacific: rapid evolution of gamete recognition and sperm morphology in cryptic species of sea urchin.
Landry C
,
Geyer LB
,
Arakaki Y
,
Uehara T
,
Palumbi SR
.
???displayArticle.abstract???
The rich species diversity of the marine Indo-West Pacific (IWP) has been explained largely on the basis of historical observation of large-scale diversity gradients. Careful study of divergence among closely related species can reveal important new information about the pace and mechanisms of their formation, and can illuminate the genesis of biogeographic patterns. Young species inhabiting the IWP include urchins of the genus Echinometra, which diverged over the past 1-5 Myr. Here, we report the most recent divergence of two cryptic species of Echinometra inhabiting this region. Mitochondrial cytochrome oxidase 1 (CO1) sequence data show that in Echinometra oblonga, species-level divergence in sperm morphology, gamete recognition proteins and gamete compatibility arose between central and western Pacific populations in the past 250 000 years. Divergence in sperm attachment proteins suggests rapid evolution of the fertilization system. Divergence of sperm morphology may be a common feature of free-spawning animals, and offers opportunities to simultaneously understand genetic divergence, changes in protein expression patterns and morphological evolution in traits directly related to reproductive isolation.
Barber,
Sharp genetic breaks among populations of Haptosquilla pulchella (Stomatopoda) indicate limits to larval transport: patterns, causes, and consequences.
2002, Pubmed
Barber,
Sharp genetic breaks among populations of Haptosquilla pulchella (Stomatopoda) indicate limits to larval transport: patterns, causes, and consequences.
2002,
Pubmed
Bellwood,
Regional-scale assembly rules and biodiversity of coral reefs.
2001,
Pubmed
Civetta,
High divergence of reproductive tract proteins and their association with postzygotic reproductive isolation in Drosophila melanogaster and Drosophila virilis group species.
1996,
Pubmed
Ferris,
Rapid evolution of sex-related genes in Chlamydomonas.
1997,
Pubmed
Folmer,
DNA primers for amplification of mitochondrial cytochrome c oxidase subunit I from diverse metazoan invertebrates.
1995,
Pubmed
Geyer,
Reproductive character displacement and the genetics of gamete recognition in tropical sea urchins.
2004,
Pubmed
,
Echinobase
Gomendio,
Sperm competition influences sperm size in mammals.
1991,
Pubmed
Koufopanou,
A molecular phylogeny of the patellid limpets (Gastropoda: Patellidae) and its implications for the origins of their antitropical distribution.
1999,
Pubmed
Kumar,
MEGA2: molecular evolutionary genetics analysis software.
2002,
Pubmed
LaMunyon,
Evolution of larger sperm in response to experimentally increased sperm competition in Caenorhabditis elegans.
2002,
Pubmed
Lessios,
Population structure and speciation in tropical seas: global phylogeography of the sea urchin Diadema.
2001,
Pubmed
,
Echinobase
Levitan,
Fertilization selection on egg and jelly-coat size in the sand dollar Dendraster excentricus.
2002,
Pubmed
,
Echinobase
Mayfield,
Gene families from the Arabidopsis thaliana pollen coat proteome.
2001,
Pubmed
McCartney,
Dispersal barriers in tropical oceans and speciation in Atlantic and eastern Pacific sea urchins of the genus Echinometra.
2000,
Pubmed
,
Echinobase
Metz,
Positive selection and sequence rearrangements generate extensive polymorphism in the gamete recognition protein bindin.
1996,
Pubmed
,
Echinobase
Mita,
Comparative studies on the energy metabolism in spermatozoa of four closely related species of sea urchins (genus Echinometra) in Okinawa.
2002,
Pubmed
,
Echinobase
Palumbi,
Strong reproductive isolation between closely related tropical sea urchins (genus Echinometra).
1991,
Pubmed
,
Echinobase
Palumbi,
Predicting nuclear gene coalescence from mitochondrial data: the three-times rule.
2001,
Pubmed
Rahman,
Hybrids of two closely related tropical sea urchins (genus Echinometra): evidence against postzygotic isolating mechanisms.
2001,
Pubmed
,
Echinobase
Vacquier,
Isolation of bindin: the protein responsible for adhesion of sperm to sea urchin eggs.
1977,
Pubmed
,
Echinobase
Wyckoff,
Rapid evolution of male reproductive genes in the descent of man.
2000,
Pubmed