Mapping Recombination Landscape and Basidial Spore Number in the Button Mushroom Agaricus bisporus.

ABSTRACT: The button mushroom Agaricus bisporus is represented mainly by two varieties, a secondarily homothallic variety with predominantly two heterokaryotic spores per basidia and a heterothallic variety with predominantly four homokaryotic spored basidium. Both varieties also differ in their recombination landscape with the former showing crossovers (CO) predominantly at chromosome ends whereas the latter has a more evenly distribution of CO over the chromosomes. The two varieties are compatible, and this has been used to study segregation of the basidial spore number (BSN) and the genomic positions of recombination, i.e., the CO landscape, in order to find the underlying genetic determinants. Knowledge on genes controlling CO positions might facilitate either the conservation of favorabl

SUBMITTER: Sonnenberg ASM 

PROVIDER: S-EPMC10512247 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature