Retrieving a disrupted gene encoding phospholipase A for fibre enhancement in allotetraploid cultivated cotton.

ABSTRACT: After polyploidization originated from one interspecific hybridization event in Gossypium, Gossypium barbadense evolved to produce extra-long staple fibres than Gossypium hirsutum (Upland cotton), which produces a higher fibre yield. The genomic diversity between G. barbadense and G. hirsutum thus provides a genetic basis for fibre trait variation. Recently, rapid accumulation of gene disruption or deleterious mutation was reported in allotetraploid cotton genomes, with unknown impacts on fibre traits. Here, we identified gene disruptions in allotetraploid G. hirsutum (18.14%) and G. barbadense (17.38%) through comparison with their presumed diploid progenitors. Relative to conserved genes, these disrupted genes exhibited faster evolution rate, lower expression level and altered gene co-ex

SUBMITTER: Fang L 

PROVIDER: S-EPMC9398350 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature