Allelic variation of BBX24 is a dominant determinant controlling red coloration and dwarfism in pear.

ABSTRACT: Variation in anthocyanin biosynthesis in pear fruit provides genetic germplasm resources for breeding, while dwarfing is an important agronomic trait, which is beneficial to reduce the management costs and allow for the implementation of high-density cultivation. Here, we combined bulked segregant analysis (BSA), quantitative trait loci (QTL), and structural variation (SV) analysis to identify a 14-bp deletion which caused a frame shift mutation and resulted in the premature translation termination of a B-box (BBX) family of zinc transcription factor, PyBBX24, and its allelic variation termed PyBBX24^ΔN14. PyBBX24^ΔN14 overexpression promotes anthocyanin biosynthesis in pear, strawberry, Arabidopsis, tobacco, and tomato, while that of PyBBX24 did not. PyBBX24^ΔN14</

SUBMITTER: Yang G 

PROVIDER: S-EPMC11123420 | biostudies-literature | 2024 Jun

REPOSITORIES: biostudies-literature