Chromosome and Molecular Analyses Reveal Significant Karyotype Diversity and Provide New Evidence on the Origin of Aegilops columnaris.

ABSTRACT: Aegilops columnaris Zhuk. is tetraploid grass species (2n = 4x = 28, U^cU^cX^cX^c) closely related to Ae. neglecta and growing in Western Asia and a western part of the Fertile Crescent. Genetic diversity of Ae. columnaris was assessed using C-banding, FISH, nuclear and chloroplast (cp) DNA analyses, and gliadin electrophoresis. Cytogenetically Ae. columnaris was subdivided into two groups, C-I and C-II, showing different karyotype structure, C-banding, and FISH patterns. C-I group was more similar to Ae. neglecta. All types of markers revealed significant heterogeneity in C-II group, although group C-I was also polymorphic. Two chromosomal groups were consistent with plastogroups identified in a current study based

SUBMITTER: Badaeva ED 

PROVIDER: S-EPMC8151338 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature