A 3-bp deletion of WLS5 gene leads to weak growth and early leaf senescence in rice.

ABSTRACT:

Background

In rice (Oryza sativa) and other grains, weak growth (dwarfism, short panicle length, and low seed-setting rate) and early senescence lead to reduced yield. The molecular mechanisms behind these processes have been widely studied; however, the complex genetic regulatory networks controlling growth and senescence require further elucidation.

Results

We isolated a mutant exhibiting weak growth throughout development and early senescence of leaf tips, and designated this mutant weakness and leaf senescence5 (wls5). Histological analysis showed that the poor growth of wls5 plants involved a reduction in cell length and number. Physiological analysis and transmission electron microscopy revealed that the wls5 cells had abnormal chloroplasts, and the mutants underwent c

SUBMITTER: Zhao C 

PROVIDER: S-EPMC6488631 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature