RRC ID 38098
著者 Hiraide R, Kawai-Toyooka H, Hamaji T, Matsuzaki R, Kawafune K, Abe J, Sekimoto H, Umen J, Nozaki H.
タイトル The evolution of male-female sexual dimorphism predates the gender-based divergence of the mating locus gene MAT3/RB.
ジャーナル Mol Biol Evol
Abstract The molecular bases for the evolution of male-female sexual dimorphism are possible to study in volvocine algae because they encompass the entire range of reproductive morphologies from isogamy to oogamy. In 1978, Charlesworth suggested the model of a gamete size gene becoming linked to the sex-determining or mating type locus (MT) as a mechanism for the evolution of anisogamy. Here, we carried out the first comprehensive study of a candidate MT-linked oogamy gene, MAT3/RB, across the volvocine lineage. We found that evolution of anisogamy/oogamy predates the extremely high male-female divergence of MAT3 that characterizes the Volvox carteri lineage. These data demonstrate very little sex-linked sequence divergence of MAT3 between the two sexes in other volvocine groups, though linkage between MAT3 and the mating locus appears to be conserved. These data implicate genetic determinants other than or in addition to MAT3 in the evolution of anisogamy in volvocine algae.
巻・号 30(5)
ページ 1038-40
公開日 2013-5-1
DOI 10.1093/molbev/mst018
PII mst018
PMID 23364323
PMC PMC3670736
MeSH Biological Evolution Chlamydomonas / classification Chlamydomonas / genetics* Molecular Sequence Data Phylogeny Plant Proteins / classification Plant Proteins / genetics Volvox / classification Volvox / genetics*
IF 11.062
引用数 24
WOS 分野 GENETICS & HEREDITY BIOCHEMISTRY & MOLECULAR BIOLOGY EVOLUTIONARY BIOLOGY
リソース情報
藻類 NIES-722 NIES-866 NIES-1710 NIES-1712 NIES-1859 NIES-1861 NIES-733