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 |