Mating type specific transcriptomic response to sex inducing pheromone in the pennate diatom Seminavis robusta.

ABSTRACT: Sexual reproduction is a fundamental phase in the life cycle of most diatoms. Despite its role as a source of genetic variation, it is rarely reported in natural circumstances and its molecular foundations remain largely unknown. Here, we integrate independent transcriptomic datasets to prioritize genes responding to sex inducing pheromones (SIPs) in the pennate diatom Seminavis robusta. We observe marked gene expression changes associated with SIP treatment in both mating types, including an inhibition of S phase progression, chloroplast division, mitosis, and cell wall formation. Meanwhile, meiotic genes are upregulated in response to SIP, including a sexually induced diatom specific cyclin. Our data further suggest an important role for reactive oxygen species, energy metabolism, and cG

SUBMITTER: Bilcke G 

PROVIDER: S-EPMC8027222 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature