ArticlePlant biotechnology journal2021
Increased seed number per silique in Brassica juncea by deleting cis-regulatory region affecting BjCLV1 expression in carpel margin meristem.
Article in Plant biotechnology journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed, 12 citations in OpenAlex.
- Genetic Basis of UV Bullseye Size Variations in Turnip Rape (Brassica rapa subsp. oleifera).Plant biotechnology journal · 2026Article
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- Developmental pleiotropy of SDP1 from seedling to mature stages in B. napus.Plant molecular biology · 2024Article
- The current scenario and future perspectives of transgenic oilseed mustard by CRISPR-Cas9.Molecular biology reports · 2023Review
- Genome-wide characterization of ovate family protein gene family associated with number of seeds per silique inFrontiers in plant science · 2022Article
- Increased seed number per silique in Brassica juncea by deleting cis-regulatory region affecting BjCLV1 expression in carpel margin meristem.Plant biotechnology journal · 2021Article
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12 authors at 1 institution in 1 country.
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Abstract
Mustard yield per plant is severely restricted by the seed number per silique. The seed number per silique in the Brassica juncea trilocular mutant J163-4 is significantly greater than that in normal bilocular plants. However, how the trilocular silique of J163-4 is formed remains unclear. Here, we studied the gene structure and function of mc2 in B. juncea and Arabidopsis using comparative morphology and molecular genetic experiments. We found that mc2 is a CLV1 ortholog, BjA7.CLV1. The deletion of cis-regulatory region in mc2 promoter, which affects Mc2 expression in carpel margin meristem (CMM), led to trilocular silique formation. The BjCLV1 sequence with its complete promoter containing the cis-regulatory region can restore the Bjclv1 and clv1 mutant phenotypes in B. juncea and Arabidopsis, respectively. Additionally, this cis-regulatory region had a collinear segment in the promoter of CLV1 homologous gene in most Brassicaceae species. Our results are consistent with the report that BjCLV1 represents a conserved pleiotropic role in shoot meristem and CMM development, which contains a cis-regulatory sequence specifically expressed BjCLV1 in CMM in its promoter, and this cis-regulatory region is conserved in Brassicaceae species. These results offer a reliable approach for fine-tuning the traits of seed yield in Brassicaceae crops.
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