ArticleBMC genomics2021
Characterization and transcriptomic analysis of a novel yellow-green leaf wucai (Brassica campestris L.) germplasm.
Article in BMC genomics, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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12 citing papers in PubMed, 42 citations in OpenAlex.
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- Genome-wide analysis of the DREB family genes and functional identification of the involvement of BrDREB2B in abiotic stress in wucai (Brassica campestris L.).BMC genomics · 2022Article
- Comparative physiology and transcriptome analysis reveals that chloroplast development influences silver-white leaf color formation in Hydrangea macrophylla var. maculata.BMC plant biology · 2022Article
- Functional analysis of CqPORB in the regulation of chlorophyll biosynthesis inFrontiers in plant science · 2022Article
- Cytological, Biochemical, and Transcriptomic Analyses of a Novel Yellow Leaf Variation in aGenes · 2021Article
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Authors and funding
10 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundLeaf color mutants are the ideal materials to explore the pathways of chlorophyll (Chl) metabolism, chloroplast development, and photosynthesis system. In this study, a spontaneous yellow-green leaf wucai (Brassica campestris L.) mutant "WY16-13" was identified, which exhibited yellow-green leaf color during its entire growth period. However, current understanding of the molecular mechanism underlying Chl metabolism and chloroplast development of "WY16-13" is limited.
resultsTotal Chl and carotenoid content in WY16-13 was reduced by 60.92 and 58.82%, respectively, as compared with its wild type parental line W16-13. Electron microscopic investigation revealed fewer chloroplasts per cell and looser stroma lamellae in WY16-13 than in W16-13. A comparative transcriptome profiling was performed using leaves from the yellow-green leaf type (WY16-13) and normal green-leaf type (W16-13). A total of 54.12 million (M) (WY16-13) and 56.17 M (W16-13) reads were generated. A total of 40,578 genes were identified from the mapped libraries. We identified 3882 differentially expressed genes (DEGs) in WY16-13 compared with W16-13 (i.e., 1603 upregulated genes and 2279 downregulated genes). According to the Gene Ontology (GO) term and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analyses, these DEGs are involved in porphyrin and Chl metabolism [i.e., chlorophyllase (CLH), heme oxygenase (HO), chlorophyll (ide) b reductase (NYC), and protochlorophyllide oxidoreductase (POR) genes], carbohydrate metabolism, photosynthesis, and carbon fixation in photosynthetic organisms. Moreover, deficiency in Chl biosynthetic intermediates in WY16-13 revealed that the formation of the yellow-green phenotype was related to the disorder of heme metabolism.
conclusionsOur results provide valuable insights into Chl deficiency in the yellow-green leaf mutant and a bioinformatics resource for further functional identification of key allelic genes responsible for differences in Chl content.
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