Sex, salinity and sampling period dependent patterns of growth hormone mRNA expression in Mozambique tilapia.

ABSTRACT: Tilapias comprise the second most aquacultured finfish group in the world. Such popularity stems in part from their tolerance to a wide range of environmental conditions and their sexually dimorphic nature, where males grow larger than females. As in other vertebrates, growth in tilapia is regulated by the growth hormone/ insulin like growth factor (GH/IGF) system. Moreover, environmental salinity has previously been shown to directly modulate growth in tilapia. Less is known, however, regarding how salinity may modulate sexually dimorphic growth. Utilizing a species of tilapia of high salinity tolerance, the Mozambique tilapia, Oreochromis mossambicus, we compared gh expression from the pituitary of male and female adults reared in fresh water (FW), seawater (SW), and a tidal regime (TR)

SUBMITTER: Seale AP 

PROVIDER: S-EPMC7451021 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature