Genome size variation and polyploidy prevalence in the genus Eragrostis are associated with the global dispersal in arid area.

ABSTRACT:

Background

Biologists have long debated the drivers of the genome size evolution and variation ever since Darwin. Assumptions for the adaptive or maladaptive consequences of the associations between genome sizes and environmental factors have been proposed, but the significance of these hypotheses remains controversial. Eragrostis is a large genus in the grass family and is often used as crop or forage during the dry seasons. The wide range and complex ploidy levels make Eragrostis an excellent model for investigating how the genome size variation and evolution is associated with environmental factors and how these changes can ben interpreted.

Methods

We reconstructed the Eragrostis phylogeny and estimated genome sizes through flow cytometric analyses. P

SUBMITTER: Hutang GR 

PROVIDER: S-EPMC10040770 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature