Regulatory Diversification of INDEHISCENT in the Capsella Genus Directs Variation in Fruit Morphology.

ABSTRACT: Evolution of gene-regulatory sequences is considered the primary driver of morphological variation [1-3]. In animals, the diversity of body plans between distantly related phyla is due to the differential expression patterns of conserved "toolkit" genes [4]. In plants, variation in expression domains similarly underlie most of the reported diversity of organ shape both in natural evolution and in the domestication of crops [5-9]. The heart-shaped fruit from members of the Capsella genus is a morphological novelty that has evolved after Capsella diverged from Arabidopsis ∼8 mya [10]. Comparative studies of fruit growth in Capsella and Arabidopsis revealed that the difference in shape is caused by local control of anisotropic growth [11]. Here, we show that sequence variation in regulatory d

SUBMITTER: Dong Y 

PROVIDER: S-EPMC6428689 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature