Meiotic Chromosomal Abnormality Detected in a Heterozygote of Elymus nutans.

ABSTRACT: Elymus nutans is an allopolyploid with a genome constitution of StStYYHH (2n = 6x = 42). Highly frequent intergenomic translocations and chromosomal variations with repeat amplification and deletions in E. nutans have been identified in the previous studies. However, more complicated structural variations such as chromosomal inversions or intra-genomic translocations are still unknown in this species, so does the reason for the origin of the chromosomal variations. Heterozygotes with rearranged chromosomes always present irregular meiosis behaviors, which subsequently cause the secondary chromosome rearrangements. Investigation on the meiosis of heterozygotes, especially on the individual chromosome level, may provide the important clues to identify the more com

SUBMITTER: Liu B 

PROVIDER: S-EPMC9112040 | biostudies-literature | 2022

REPOSITORIES: biostudies-literature