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利用基因分型测序（GBS）方法鉴定调控绿豆（ L.）叶片 SPAD 值和毛状体密度的数量性状基因座（QTL）。

Identification of quantitative trait loci (QTLs) regulating leaf SPAD value and trichome density in mungbean ( L.) using genotyping-by-sequencing (GBS) approach.

机构信息

Genetics, Indian Agricultural Research Institute, New Delhi, Delhi, India.

Plant Pathology, Indian Agricultural Research Institute, New Delhi, Delhi, India.

出版信息

PeerJ. 2024 Feb 21;12:e16722. doi: 10.7717/peerj.16722. eCollection 2024.

DOI:10.7717/peerj.16722
PMID:38406271
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10893866/
Abstract

Quantitative trait loci (QTL) mapping is used for the precise localization of genomic regions regulating various traits in plants. Two major QTLs regulating Soil Plant Analysis Development (SPAD) value () and trichome density () in mungbean were identified using recombinant inbred line (RIL) populations (PMR-1×Pusa Baisakhi) on chromosome 7. Functional analysis of QTL region identified 35 candidate genes for SPAD value (16 No) and trichome (19 No) traits. The candidate genes regulating trichome density on the dorsal leaf surface of the mungbean include , and which encodes for ZFP6, TFs bHLH DNA-binding superfamily protein, and MYB102, respectively. Also, candidate genes having vital roles in chlorophyll biosynthesis are , and , which encodes for s-adenosyl-L-methionine, FTSHI1 protein, and CRS2-associated factor, respectively. The findings unfolded the opportunity for the development of customized genotypes having high SPAD value and high trichome density having a possible role in yield and mungbean yellow vein mosaic India virus (MYMIV) resistance in mungbean.

摘要

数量性状位点（QTL）作图用于精确定位调节植物各种性状的基因组区域。使用重组自交系（RIL）群体（PMR-1×Pusa Baisakhi）在第 7 号染色体上鉴定出调控绿豆 SPAD 值（）和毛密度（）的两个主要 QTL。对 QTL 区域的功能分析鉴定出 35 个候选基因，用于调节绿豆背面叶表面的 SPAD 值（16 个）和毛密度（19 个）性状。调节绿豆背面叶表面毛密度的候选基因包括、和，分别编码 ZFP6、bHLH DNA 结合超家族蛋白和 MYB102 的转录因子。此外，在叶绿素生物合成中起重要作用的候选基因有、和，分别编码 S-腺苷甲硫氨酸、FTSHI1 蛋白和 CRS2 相关因子。这些发现为开发具有高 SPAD 值和高密度毛的定制基因型提供了机会，这可能对绿豆的产量和绿豆黄花叶病毒（MYMIV）抗性有作用。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d22a/10893866/c94c27d3fd74/peerj-12-16722-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d22a/10893866/5876b3ec884d/peerj-12-16722-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d22a/10893866/0859807e7b6f/peerj-12-16722-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d22a/10893866/461334613f1b/peerj-12-16722-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d22a/10893866/c94c27d3fd74/peerj-12-16722-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d22a/10893866/5876b3ec884d/peerj-12-16722-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d22a/10893866/0859807e7b6f/peerj-12-16722-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d22a/10893866/461334613f1b/peerj-12-16722-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d22a/10893866/c94c27d3fd74/peerj-12-16722-g004.jpg

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