Comparative transcriptome analysis revealed genes involved in the sexual size dimorphisms and expressed sequence tag-Simple Sequence Repeat loci validation in Odorrana graminea

Sexual size dimorphism (SSD) is widespread among animals and characterized by differences in body between sexes. Previous studies suggested SSD might reflect the adaptations of particular sexes to their specific reproductive or ecological roles. The large green cascade frogs ( Odorrana graminea ) exhibit obvious that females are nearly twice males. However, molecular mechanisms underlying O. still unknown. In present study, we first obtained 5 Gb transcriptome data through Illumina sequencing, de novo assembly produced 189,868 unigenes . A total 774 significantly sex-differentially expressed genes (DEGs) were identified. Of which, 436 DEGs showed higher expression levels than those males, whereas 338 lower We also found 10 related energy metabolism , these estrogen signaling pathway, oxidative phosphorylation, fatty acid biosynthesis, gastric secretion, nitrogen metabolism. steroid hormone synthesis be main driving force leading sexual growth addition, a 63,269 potential EST-SSR loci 4,669 detected validated different populations other species within assembled will facilitate functional genomic developed markers contribute population genetics involved provide insights into genetic