Dioecy and chromosomal sex determination are maintained through allopolyploid speciation in the plant genus Mercurialis
Authors: Toups, M.A., Vicoso, B. and Pannell, J.R.
Journal: Plos Genetics
Volume: 18
Issue: 7
eISSN: 1553-7404
ISSN: 1553-7390
DOI: 10.1371/journal.pgen.1010226
Abstract:Polyploidization may precipitate dramatic changes to the genome, including chromosome rearrangements, gene loss, and changes in gene expression. In dioecious plants, the sex-determining mechanism may also be disrupted by polyploidization, with the potential evolution of hermaphroditism. However, while dioecy appears to have persisted through a ploidy transition in some species, it is unknown whether the newly formed polyploid maintained its sex-determining system uninterrupted, or whether dioecy re-evolved after a period of hermaphroditism. Here, we develop a bioinformatic pipeline using RNA-sequencing data from natural populations to demonstrate that the allopolyploid plant Mercurialis canariensis directly inherited its sex-determining region from one of its diploid progenitor species, M. annua, and likely remained dioecious through the transition. The sex-determining region of M. canariensis is smaller than that of its diploid progenitor, suggesting that the non-recombining region of M. annua expanded subsequent to the polyploid origin of M. canariensis. Homeologous pairs show partial sexual subfunctionalization. We discuss the possibility that gene duplicates created by polyploidization might contribute to resolving sexual antagonism.
https://eprints.bournemouth.ac.uk/37876/
Source: Scopus
Dioecy and chromosomal sex determination are maintained through allopolyploid speciation in the plant genus Mercurialis.
Authors: Toups, M.A., Vicoso, B. and Pannell, J.R.
Journal: PLoS Genet
Volume: 18
Issue: 7
Pages: e1010226
eISSN: 1553-7404
DOI: 10.1371/journal.pgen.1010226
Abstract:Polyploidization may precipitate dramatic changes to the genome, including chromosome rearrangements, gene loss, and changes in gene expression. In dioecious plants, the sex-determining mechanism may also be disrupted by polyploidization, with the potential evolution of hermaphroditism. However, while dioecy appears to have persisted through a ploidy transition in some species, it is unknown whether the newly formed polyploid maintained its sex-determining system uninterrupted, or whether dioecy re-evolved after a period of hermaphroditism. Here, we develop a bioinformatic pipeline using RNA-sequencing data from natural populations to demonstrate that the allopolyploid plant Mercurialis canariensis directly inherited its sex-determining region from one of its diploid progenitor species, M. annua, and likely remained dioecious through the transition. The sex-determining region of M. canariensis is smaller than that of its diploid progenitor, suggesting that the non-recombining region of M. annua expanded subsequent to the polyploid origin of M. canariensis. Homeologous pairs show partial sexual subfunctionalization. We discuss the possibility that gene duplicates created by polyploidization might contribute to resolving sexual antagonism.
https://eprints.bournemouth.ac.uk/37876/
Source: PubMed
Dioecy and chromosomal sex determination are maintained through allopolyploid speciation in the plant genus <i>Mercurialis</i>
Authors: Toups, M.A., Vicoso, B. and Pannell, J.R.
Journal: PLOS GENETICS
Volume: 18
Issue: 7
ISSN: 1553-7404
DOI: 10.1371/journal.pgen.1010226
https://eprints.bournemouth.ac.uk/37876/
Source: Web of Science (Lite)
Dioecy and chromosomal sex determination are maintained through allopolyploid speciation in the plant genus Mercurialis
Authors: Toups, M.A., Vicoso, B. and Pannell, J.R.
Journal: PLOS GENETICS
Volume: 18
Issue: 7
ISSN: 1553-7404
DOI: 10.1371/journal.pgen.1010226
https://eprints.bournemouth.ac.uk/37876/
Source: Web of Science (Lite)
Dioecy and chromosomal sex determination are maintained through allopolyploid speciation in the plant genus Mercurialis.
Authors: Toups, M.A., Vicoso, B. and Pannell, J.R.
Journal: PLoS genetics
Volume: 18
Issue: 7
Pages: e1010226
eISSN: 1553-7404
ISSN: 1553-7390
DOI: 10.1371/journal.pgen.1010226
Abstract:Polyploidization may precipitate dramatic changes to the genome, including chromosome rearrangements, gene loss, and changes in gene expression. In dioecious plants, the sex-determining mechanism may also be disrupted by polyploidization, with the potential evolution of hermaphroditism. However, while dioecy appears to have persisted through a ploidy transition in some species, it is unknown whether the newly formed polyploid maintained its sex-determining system uninterrupted, or whether dioecy re-evolved after a period of hermaphroditism. Here, we develop a bioinformatic pipeline using RNA-sequencing data from natural populations to demonstrate that the allopolyploid plant Mercurialis canariensis directly inherited its sex-determining region from one of its diploid progenitor species, M. annua, and likely remained dioecious through the transition. The sex-determining region of M. canariensis is smaller than that of its diploid progenitor, suggesting that the non-recombining region of M. annua expanded subsequent to the polyploid origin of M. canariensis. Homeologous pairs show partial sexual subfunctionalization. We discuss the possibility that gene duplicates created by polyploidization might contribute to resolving sexual antagonism.
https://eprints.bournemouth.ac.uk/37876/
Source: Europe PubMed Central
Dioecy and chromosomal sex determination are maintained through allopolyploid speciation in the plant genus Mercurialis
Authors: Toups, M.A., Vicoso, B. and Pannell, J.R.
Journal: PLoS Genetics
Volume: 18
Issue: 7
ISSN: 1553-7390
Abstract:Polyploidization may precipitate dramatic changes to the genome, including chromosome rearrangements, gene loss, and changes in gene expression. In dioecious plants, the sex-determining mechanism may also be disrupted by polyploidization, with the potential evolution of hermaphroditism. However, while dioecy appears to have persisted through a ploidy transition in some species, it is unknown whether the newly formed polyploid maintained its sex-determining system uninterrupted, or whether dioecy re-evolved after a period of hermaphroditism. Here, we develop a bioinformatic pipeline using RNA-sequencing data from natural populations to demonstrate that the allopolyploid plant Mercurialis canariensis directly inherited its sex-determining region from one of its diploid progenitor species, M. annua, and likely remained dioecious through the transition. The sex-determining region of M. canariensis is smaller than that of its diploid progenitor, suggesting that the non-recombining region of M. annua expanded subsequent to the polyploid origin of M. canariensis. Homeologous pairs show partial sexual subfunctionalization. We discuss the possibility that gene duplicates created by polyploidization might contribute to resolving sexual antagonism.
https://eprints.bournemouth.ac.uk/37876/
Source: BURO EPrints