Meiotic recombination in the offspring of Microbotryum hybrids and its impact on pathogenicity.

ABSTRACT:

Background

Hybridization is a central mechanism in evolution, producing new species or introducing important genetic variation into existing species. In plant-pathogenic fungi, adaptation and specialization to exploit a host species are key determinants of evolutionary success. Here, we performed experimental crosses between the two pathogenic Microbotryum species, M. lychnidis-dioicae and M. silenes-acaulis that are specialized to different hosts. The resulting offspring were analyzed on phenotypic and genomic levels to describe genomic characteristics of hybrid offspring and genetic factors likely involved in host-specialization.

Results

Genomic analyses of interspecific fungal hybrids revealed that individuals were most viable if the majority of loci were inherited from o

SUBMITTER: Bueker B 

PROVIDER: S-EPMC7499883 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature