| RRC ID |
76452
|
| 著者 |
Kohei Takahashi, Shigekatsu Suzuki, Hiroko Kawai-Toyooka, Kayoko Yamamoto, Takashi Hamaji, Ryo Ootsuki, Haruyo Yamaguchi, Masanobu Kawachi, Tetsuya Higashiyama, Hisayoshi Nozaki
|
| タイトル |
Reorganization of the ancestral sex-determining regions during the evolution of trioecy in Pleodorina starrii
|
| ジャーナル |
Communications Biology
|
| Abstract |
The coexistence of three sexual phenotypes (male, female and bisexual) in a single species, ‘trioecy’, is rarely found in diploid organisms such as flowering plants and invertebrates. However, trioecy in haploid organisms has only recently been reported in a green algal species, Pleodorina starrii. Here, we generated whole-genome data of the three sex phenotypes of P. starrii to reveal a reorganization of the ancestral sex-determining regions (SDRs) in the sex chromosomes: the male and bisexual phenotypes had the same “male SDR” with paralogous gene expansions of the male-determining gene MID, whereas the female phenotype had a “female SDR” with transposition of the female-specific gene FUS1 to autosomal regions. Although the male and bisexual sex phenotypes had the identical male SDR and harbored autosomal FUS1, MID and FUS1 expression during sexual reproduction differed between them. Thus, the coexistence of three sex phenotypes in P. starrii is possible.
|
| 巻・号 |
6
|
| 公開日 |
2023-6-9
|
| DOI |
10.1038/s42003-023-04949-1
|
| PMID |
37296191
|
| PMC |
PMC10256686
|
| MeSH |
Genome*
Haploidy
Reproduction / genetics
Sex Chromosomes*
|
| IF |
4.165
|
| リソース情報 |
| 藻類 |
NIES-1363
NIES-4479
NIES-4480
NIES-4481
NIES-4482 |
