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SKIP controls flowering time via the alternative splicing of SEF pre-mRNA in Arabidopsis.


ABSTRACT:

Background

Similar to other eukaryotes, splicing is emerging as an important process affecting development and stress tolerance in plants. Ski-interacting protein (SKIP), a splicing factor, is essential for circadian clock function and abiotic stress tolerance; however, the mechanisms whereby it regulates flowering time are unknown.

Results

In this study, we found that SKIP is required for the splicing of serrated leaves and early flowering (SEF) pre-messenger RNA (mRNA), which encodes a component of the ATP-dependent SWR1 chromatin remodeling complex (SWR1-C). Defects in the splicing of SEF pre-mRNA reduced H2A.Z enrichment at FLC, MAF4, and MAF5, suppressed the expression of these genes, and produced an early flowering phenotype in skip-1 plants.

Conclusions

Our findings indicate that SKIP regulates SWR1-C function via alternative splicing to control the floral transition in Arabidopsis thaliana.

SUBMITTER: Cui Z 

PROVIDER: S-EPMC5594616 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature

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SKIP controls flowering time via the alternative splicing of SEF pre-mRNA in Arabidopsis.

Cui Zhibo Z   Tong Aizi A   Huo Yiqiong Y   Yan Zhiqiang Z   Yang Weiqi W   Yang Xianli X   Wang Xiao-Xue XX  

BMC biology 20170911 1


<h4>Background</h4>Similar to other eukaryotes, splicing is emerging as an important process affecting development and stress tolerance in plants. Ski-interacting protein (SKIP), a splicing factor, is essential for circadian clock function and abiotic stress tolerance; however, the mechanisms whereby it regulates flowering time are unknown.<h4>Results</h4>In this study, we found that SKIP is required for the splicing of serrated leaves and early flowering (SEF) pre-messenger RNA (mRNA), which en  ...[more]

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