Differences in genomic DNA and allelic expression of the tgfb1b gene contribute to bone morphology. (A) An intermediate trait in bone morphology was observed in BTF1 and TBF1. (Scale bar) 2.5 cm. (B) Intermediate traits were observed on different sides of the pharyngeal jaw. (Scale bar) 1 cm. (C) Alignment of tgfb1b gene sequences in the TC, BSB, and CDS regions in grass carp and zebrafish. The gray represents the same base pair among four species. The black represents the different base pair among four species. (UTR) untranslated region. (D) Ratios of BSB/TC allelic expression were determined in three tissues of parents and reciprocal cross hybrids: (L) liver; (G) gonad; (M) muscle. The spot represents the expression values of the two parents and their hybrid progenies. The line represents the change trend of gene expression.
