Differential Gene Expression between Fungal Mating Types Is Associated with Sequence Degeneration.

ABSTRACT: Degenerative mutations in non-recombining regions, such as in sex chromosomes, may lead to differential expression between alleles if mutations occur stochastically in one or the other allele. Reduced allelic expression due to degeneration has indeed been suggested to occur in various sex-chromosome systems. However, whether an association occurs between specific signatures of degeneration and differential expression between alleles has not been extensively tested, and sexual antagonism can also cause differential expression on sex chromosomes. The anther-smut fungus Microbotryum lychnidis-dioicae is ideal for testing associations between specific degenerative signatures and differential expression because 1) there are multiple evolutionary strata on the mating-type chromosomes, reflecting

SUBMITTER: Ma WJ 

PROVIDER: S-EPMC7150583 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature