A primary study on inheritance of morphological traits from Megalobrarma amblycephala, Megalobrama terminalis to their reciprocal hybrids(F1)

Abstract:

In this paper, the meristic traits and truss network characters of Megalobrama amblycephala, Megalobrama terminalis and their reciprocal hybrids were studied by three multivariate analysis (clustering analysis, discriminant analysis and principal component analysis) , and the genetic transfer of morphology traits from parents to their hybrids was analysed. The results showed: (1) The morphological traits in reciprocal hybrids were more traced through the female ancester. The inheritance from M. terminalis to hybrids was stronger than that from M. amblycephala. (2) The characters of main part of body, head-tail axis,sand hard spine of dorsal fin are important factors to discriminate Megalobrama amblycephala, Megalobrama terminalis and their reciprocal hybrids.