ArticleCommunications biology2023
Reorganization of the ancestral sex-determining regions during the evolution of trioecy in Pleodorina starrii.
Article in Communications biology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 13 citations in OpenAlex.
- Origin and evolutionary trajectories of brown algal sex chromosomes.Nature ecology & evolution · 2025Article
- Clonality contributes to the spread of Avrainvillea lacerata (Bryopsidales, Chlorophyta) in Hawai'i.Journal of phycology · 2024Article
- Widespread male sterility and trioecy in androdioecious Mercurialis annua: Its distribution, genetic basis, and estimates of morph-specific fitness components.American journal of botany · 2024Article
- Whole-genome sequencing analysis of volvocine green algae reveals the molecular genetic basis for the diversity and evolution of sex.Proceedings of the Japan Academy. Series B, Physical and biological sciences · 2024Review
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10 authors at 5 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
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.
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