The nature of intraspecific and interspecific genome size variation in taxonomically complex eyebrights.

ABSTRACT:

Background and aims

Genome size varies considerably across the diversity of plant life. Although genome size is, by definition, affected by genetic presence/absence variants, which are ubiquitous in population sequencing studies, genome size is often treated as an intrinsic property of a species. Here, we studied intra- and interspecific genome size variation in taxonomically complex British eyebrights (Euphrasia, Orobanchaceae). Our aim is to document genome size diversity and investigate underlying evolutionary processes shaping variation between individuals, populations and species.

Methods

We generated genome size data for 192 individuals of diploid and tetraploid Euphrasia and analysed genome size variation in relation to ploidy, taxonomy, population affiliation and geo

SUBMITTER: Becher H 

PROVIDER: S-EPMC8422891 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature