Transmission ratio distortion is frequent in Arabidopsis thaliana controlled crosses.

ABSTRACT: The equal probability of transmission of alleles from either parent during sexual reproduction is a central tenet of genetics and evolutionary biology. Yet, there are many cases where this rule is violated. The preferential transmission of alleles or genotypes is termed transmission ratio distortion (TRD). Examples of TRD have been identified in many species, implying that they are universal, but the resolution of species-wide studies of TRD are limited. We have performed a species-wide screen for TRD in over 500 segregating F₂ populations of Arabidopsis thaliana using pooled reduced-representation genome sequencing. TRD was evident in up to a quarter of surveyed populations. Most populations exhibited distortion at only one genomic region, with some regions being repeatedly aff

SUBMITTER: Seymour DK 

PROVIDER: S-EPMC6169738 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature