Transcriptomics and the origin of obligate parthenogenesis.

ABSTRACT: Despite the presence of obligately parthenogenetic (OP) lineages derived from sexual ancestors in diverse phylogenetic groups, the genetic mechanisms giving rise to the OP lineages remain poorly understood. The freshwater microcrustacean Daphnia pulex typically reproduces via cyclical parthenogenesis. However, some populations of OP D. pulex have emerged due to ancestral hybridization and introgression events between two cyclically parthenogenetic (CP) species D. pulex and D. pulicaria. These OP hybrids produce both subitaneous and resting eggs parthenogenetically, deviating from CP isolates where resting eggs are produced via conventional meiosis and mating. This study examines the genome-wide expression and alternative splicing patterns of early subitaneous versus early resting egg produ

SUBMITTER: Snyman M 

PROVIDER: S-EPMC10382572 | biostudies-literature | 2023 Aug

REPOSITORIES: biostudies-literature