Claim · model-written summary
FGMYB orthologs were found on the presumed U chromosome of Phaeomegaceros chiloensis and in sequences presumably from the U chromosomes of Leiosporoceros dussii and Phymatoceros phymatodes.
- Taxon
- Phaeomegaceros chiloensisPhaeomegaceros chiloensise0
- Gene
- FGMYBe0
- Outcome
- orthologs can be found on the presumed U chromosomee0
- Qualifier
- in the sequences presumably from the U chromosomes of Leiosporoceros dussii and Phymatoceros phymatodese0
Verbatim
e0“FGMYB orthologs can be found on the presumed U chromosome of Phaeomegaceros chiloensis and in the sequences presumably from the U chromosomes of Leiosporoceros dussii and Phymatoceros phymatodes”
Title
Evolutionary history of sex and accessory chromosomes in hornworts
John L. Bowman; Jonathan Levins New Phytologist 2025. doi:10.1111/nph.70353
Other claims from this paper (7)
- Observation Sex chromosomes of several dioicous hornwort lineages are suggested to be homologous with each other and with at least some accessory chromosomes of monoicous hornworts.
- Mechanism FGMYB is proposed as a candidate ancestral sex-determining gene in hornworts.
- Observation After filtering 84 shared genes, 29 conserved genes remained on the hornwort sex chromosome.
- Observation Nine gametologs are shared across the three dioicous hornwort species with assembled sex chromosomes.
- Observation Homologs of accessory chromosome genes are significantly overrepresented on the male sex chromosome (Chromosome 6) of Leiosporoceros dussii.
- Observation Phylogenetic patterns suggest at least six, possibly eight, gametologs have been in the nonrecombining region of the sex chromosomes since the origin of extant hornwort diversity.
- Observation There is little synteny of gametologs between the V chromosomes of Leiosporoceros dussii and Phymatoceros phymatodes.