Genetic mapping reveals BjRf as a candidate gene controlling fertility restoration of the oxa CMS in Brassica juncea

Cheng, Qiqi; Yao, Peijie; Li, Hui; Han, Yiming; Xu, Kejing; Heng, Shuangping; Fu, Tingdong; Wan, Zhengjie

doi:10.1007/s00122-021-03767-5

Cited by 1 publication

(1 citation statement)

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“…MutS HOMOLOG1 , a nuclear gene can control illegitimate recombination in plant mitochondria, whose silencing can mediate mitochondrial orf220 substoichiometric shifting and cause MS in B. juncea [ 11 ]. In addition, BjuA017917 , a non-PPR fertility restoration gene encoding a guanosine nucleotide diphosphate dissociation inhibitor, was proposed to be the candidate gene for fertility restoration of the oxa CMS line in B. juncea [ 12 ]. Studies have also shown that the retrograde signal from the mitochondrial genes such as orf288 could arrest the differentiation of archesporial cells and caused MS in the hau CMS line of B. napus [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

Integrative Analysis of Transcriptomic and Proteomic Changes Related to Cytoplasmic Male Sterility in Spring Stem Mustard (Brassica juncea var. tumida Tsen et Lee)

Shen

Wang

Xia

et al. 2022

IJMS

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The development of flower and pollen is a complex biological process that involves multiple metabolic pathways in plants. In revealing novel insights into flower and pollen development underlying male sterility (MS), we conducted an integrated profiling of gene and protein activities in developing buds in cytoplasmic male sterile (CMS) mutants of mustard (Brassica juncea). Using RNA-Seq and label-free quantitative proteomics, 11,832 transcripts and 1780 protein species were identified with significant differential abundance between the male sterile line 09-05A and its maintainer line 09-05B at the tetrad stage and bi-nucleate stage of B. juncea. A large number of differentially expressed genes (DEGs) and differentially abundant proteins (DAPs) involved in carbohydrate and energy metabolism, including starch and sucrose metabolism, tricarboxylic acid (TCA) cycle, glycolysis, and oxidoreductase activity pathways, were significantly downregulated in 09-05A buds. The low expression of these DEGs or functional loss of DAPs, which can lead to an insufficient supply of critical substrates and ATP, could be associated with flower development, pollen development, and changes in fertility in B. juncea. Therefore, this study provided transcriptomic and proteomic information of pollen abortion for B. juncea and a basis for further research on the molecular regulatory mechanism of MS in plants.

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Section: Introductionmentioning

confidence: 99%