Evolution of an expanded sex-determining locus in Volvox.
Evolution of an expanded sex-determining locus in Volvox.
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DOI:
10.1126/science.1186222
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发表时间:
2010-04-16
期刊:
影响因子:
--
通讯作者:
Umen JG
中科院分区:
文献类型:
--
作者:
Ferris P;Olson BJ;De Hoff PL;Douglass S;Casero D;Prochnik S;Geng S;Rai R;Grimwood J;Schmutz J;Nishii I;Hamaji T;Nozaki H;Pellegrini M;Umen JG
Although dimorphic sexes have evolved repeatedly in multicellular eukaryotes, their origins are unknown. The mating locus (MT) of the sexually dimorphic multicellular green alga, Volvox carteri, specifies the production of eggs and sperm and has undergone a remarkable expansion and divergence relative to MT from Chlamydomonas reinhardtii, a closely related unicellular species that has equal-sized gametes. Transcriptome analysis revealed a rewired gametic expression program for Volvox MT genes relative to Chlamydomonas, and identified multiple gender-specific and sex-regulated transcripts. The retinoblastoma tumor suppressor homolog MAT3 is a Volvox MT gene that displays sexually regulated alternative splicing and evidence of gender-specific selection, both indicative of cooption into the sexual cycle. Thus, sex-determining loci impact the evolution of both sex-related and non-sex-related genes.
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DOI:
10.1073/pnas.0811205106
发表时间:
2009-03-03
影响因子:
11.1
作者:
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通讯作者:
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DOI:
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发表时间:
2000-11-29
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通讯作者:
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DOI:
10.1073/pnas.0609054104
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影响因子:
11.1
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影响因子:
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