Variation in Rubisco activase (RCAβ) gene promoters and expression in soybean [Glycine max (L.) Merr].

ABSTRACT: Understanding the genetic basis of Rubisco activase (RCA) gene regulation and altering its expression levels to optimize Rubisco activation may provide an approach to enhance plant productivity. However, the genetic mechanisms and the effect of RCA expression on phenotype are still unknown in soybean. This work analysed the expression of RCA genes and demonstrated that two RCA isoforms presented different expression patterns. Compared with GmRCAα, GmRCAβ was expressed at higher mRNA and protein levels. In addition, GmRCAα and GmRCAβ were positively correlated with chlorophyll fluorescence parameters and seed yield, suggesting that changes in expression of RCA has a potential applicability in breeding for enhanced soybean productivity. To identify the genetic factors that cause expression l

SUBMITTER: Chao M 

PROVIDER: S-EPMC3883283 | biostudies-literature | 2014 Jan

REPOSITORIES: biostudies-literature