Genome Diversity and Evolution of Reproductive Systems
A special issue of Genes (ISSN 2073-4425). This special issue belongs to the section "Plant Genetics and Genomics".
Deadline for manuscript submissions: closed (20 October 2021) | Viewed by 606
Special Issue Editors
Interests: plant biodiversity; plant taxonomy; plant genetics; plant reproduction; plant conservation
Interests: evolution; agro-forestry; biomarkers; genomics; ecosystem services
Special Issues, Collections and Topics in MDPI journals
Special Issue Information
Dear Colleagues,
This Special Issue on “Evolution of Plant Reproductive Systems” intends to contribute knowledge on breeding systems and evolutionary transitions between reproductive systems in order to understand the role that they play in the evolution of angiosperms.
The reproductive organs of flowering plants exhibit an astonishing floral diversity to ensure mating and reproductive assurance. The great majority of angiosperms are hermaphroditic, facilitating opportunities for self- (selfing) and cross-fertilization (outcrossing), although adaptations that promote outbreeding, including the evolution of separate sexes, have also evolved. The most frequent evolutionary transition involving the reproductive systems of flowering plants is the change from outcrossing to selfing, resuulting in genomic consequences for many related species. Despite genetic constraints, selfing can provide reproductive assurance and can be advantageous in environments where there are limited mating partners and/ or pollen limitations. Moreover, in flowering plants, asexually-derived individuals can be formed as a consequence of asexual seed formation (apomixis). However, this trait is rarely obligate, as apomictic plants usually present a residual sexual function or an uncoupling of apomeiosis (unreduced egg formation) and parthenogenesis (embryo development from the egg cell). Consequently, apomicts may produce asexual and sexual progeny from different ovules and seeds in the same mother plant and within the same offspring generation through facultative sexuality. This diversity of reproductive systems varies a lot among genera and affects many important aspects of population ecology, and have extraordinary evolutionary consequences.
Dr. Ana Caperta
Dr. Isabel Marques
Guest Editors
Manuscript Submission Information
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Keywords
- breeding systems
- apomixis
- sexual functions
- pollen transport
- sexual polymorphisms
- hybridization and polyploidy
- genes and proteins
- transcriptome
