The genetics and physiology of seed dormancy, a crucial trait in common bean domestication.

ABSTRACT:

Background

Physical seed dormancy is an important trait in legume domestication. Although seed dormancy is beneficial in wild ecosystems, it is generally considered to be an undesirable trait in crops due to reduction in yield and / or quality. The physiological mechanism and underlying genetic factor(s) of seed dormancy is largely unknown in several legume species. Here we employed an integrative approach to understand the mechanisms controlling physical seed dormancy in common bean (Phaseolus vulgaris L.).

Results

Using an innovative CT scan imaging system, we were able to track water movements inside the seed coat. We found that water uptake initiates from the bean seed lens. Using a scanning electron microscopy (SEM) we further identified several micro-cracks on the lens

SUBMITTER: Soltani A 

PROVIDER: S-EPMC7821524 | biostudies-literature | 2021 Jan

REPOSITORIES: biostudies-literature