The raison d'être of meiosis is shuffling of genetic information via Mendelian segregation
and, within individual chromosomes, by DNA crossing-over. These outcomes are enabled …

Accurate segregation of homologous chromosomes during meiosis depends on the ability of
meiotic cells to promote reciprocal exchanges between parental DNA strands, known as …

Meiotic crossovers are limited in number and are prevented from occurring close to each
other by crossover interference. In many species, crossover number is subject to sexual …

The synaptonemal complex is a tripartite proteinaceous ultrastructure that forms between
homologous chromosomes during prophase I of meiosis in the majority of eukaryotes. It is …

Polyploidy is a major driver of evolutionary change. Autopolyploids, which arise by within-
species whole-genome duplication, carry multiple nearly identical copies of each …

Many species, including most flowering plants, are polyploid, possessing multiple genomes.
During polyploidisation, fertility is preserved via the evolution of mechanisms to control the …

Hybridization and polyploidy have been considered as significant evolutionary forces in
adaptation and speciation, especially among plants. Interspecific gene flow generates novel …

Plant cytogenetic studies have provided essential knowledge on chromosome behavior
during meiosis, contributing to our understanding of this complex process. In this review, we …

Gas vesicles are protein megacomplexes filled with gas to allow aquatic bacteria to control
their vertical position in the water column. The cover image shows a detailed model of a …

Hybrid sterility (HS) is an early postzygotic reproductive isolation mechanism observed in all
sexually reproducing species. Infertility of hybrids prevents gene flow between incipient …