Novel Cytonuclear Combinations Modify Arabidopsis thaliana Seed Physiology and Vigor.

ABSTRACT: Dormancy and germination vigor are complex traits of primary importance for adaptation and agriculture. Intraspecific variation in cytoplasmic genomes and cytonuclear interactions were previously reported to affect germination in Arabidopsis using novel cytonuclear combinations that disrupt co-adaptation between natural variants of nuclear and cytoplasmic genomes. However, specific aspects of dormancy and germination vigor were not thoroughly explored, nor the parental contributions to the genetic effects. Here, we specifically assessed dormancy, germination performance and longevity of seeds from Arabidopsis plants with natural and new genomic compositions. All three traits were modified by cytonuclear reshuffling. Both depth and release rate of dormancy could be modified by a changing of

SUBMITTER: Boussardon C 

PROVIDER: S-EPMC6370702 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature