Journal
GENOME BIOLOGY AND EVOLUTION
Volume 9, Issue 3, Pages 627-645Publisher
OXFORD UNIV PRESS
DOI: 10.1093/gbe/evw282
Keywords
Y degeneration; dioecy; sex chromosome turnover; sex-biased expression; sex chromosome sequencing
Categories
Funding
- ANR [ANR-12-BSV7-0002-04, ANR-14-CE19-0021-01]
- Agence Nationale de la Recherche (ANR) [ANR-12-BSV7-0002] Funding Source: Agence Nationale de la Recherche (ANR)
Ask authors/readers for more resources
Plant sex chromosomes can be vastly different from those of the few historical animal model organisms from which most of our understanding of sex chromosome evolution is derived. Recently, we have seen several advancements from studies on green algae, brown algae, and land plants that are providing a broader understanding of the variable ways in which sex chromosomes can evolve in distant eukaryotic groups. Plant sex-determining genes are being identified and, as expected, are completely different from those in animals. Species with varying levels of differentiation between the X and Y have been found in plants, and these are hypothesized to be representing different stages of sex chromosome evolution. However, we are also finding that sex chromosomes can remain morphologically unchanged over extended periods of time. Where degeneration of the Y occurs, it appears to proceed similarly in plants and animals. Dosage compensation (a phenomenon that compensates for the consequent loss of expression from the Y) has now been documented in a plant system, its mechanism, however, remains unknown. Research has also begun on the role of sex chromosomes in sexual conflict resolution, and it appears that sex-biased genes evolve similarly in plants and animals, although the functions of these genes remain poorly studied. Because the difficulty in obtaining sex chromosome sequences is increasingly being overcome by methodological developments, there is great potential for further discovery within the field of plant sex chromosome evolution.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available