The grape berry-specific basic helix-loop-helix transcription factor VvCEB1 affects cell size.

ABSTRACT: The development of fleshy fruits involves complex physiological and biochemical changes. After fertilization, fruit growth usually begins with cell division, continues with both cell division and expansion, allowing fruit set to occur, and ends with cell expansion only. In spite of the economical importance of grapevine, the molecular mechanisms controlling berry growth are not fully understood. The present work identified and characterized Vitis vinifera cell elongation bHLH protein (VvCEB1), a basic helix-loop-helix (bHLH) transcription factor controlling cell expansion in grape. VvCEB1 was expressed specifically in berry-expanding tissues with a maximum around veraison. The study of VvCEB1 promoter activity in tomato confirmed its specific fruit expression during the expansion phase. Ov

SUBMITTER: Nicolas P 

PROVIDER: S-EPMC3580811 | biostudies-literature | 2013 Feb

REPOSITORIES: biostudies-literature