Identification of Finely Mapped Quantitative Trait Locus and Candidate Gene Mining for the Three-Seeded Pod Trait in Soybean
The three-seeded pod number is an important trait that positively influences soybean yield. Soybean variety with increased three-seeded pod number contributes to the seed number/plant and higher yield. The candidate genes of the three-seeded pod may be the key for improving soybean yield. In this st...
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Frontiers Media S.A.
2021
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oai:doaj.org-article:0d6808bc08c549d484fb256f5dde12f52021-12-01T09:02:32ZIdentification of Finely Mapped Quantitative Trait Locus and Candidate Gene Mining for the Three-Seeded Pod Trait in Soybean1664-462X10.3389/fpls.2021.715488https://doaj.org/article/0d6808bc08c549d484fb256f5dde12f52021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fpls.2021.715488/fullhttps://doaj.org/toc/1664-462XThe three-seeded pod number is an important trait that positively influences soybean yield. Soybean variety with increased three-seeded pod number contributes to the seed number/plant and higher yield. The candidate genes of the three-seeded pod may be the key for improving soybean yield. In this study, identification and validation of candidate genes for three-seeded pod has been carried out. First, a total of 36 quantitative trait locus (QTL) were detected from the investigation of recombinant inbred lines including 147 individuals derived from a cross between Charleston and Dongning 594 cultivars. Five consensus QTLs were integrated. Second, an introgressed line CSSL-182 carrying the target segment for the trait from the donor parent was selected to verify the consensus QTL based on its phenotype. Third, a secondary group was constructed by backcrossing with CSSL-182, and two QTLs were confirmed. There were a total of 162 genes in the two QTLs. The mining of candidate genes resulted in the annotation of eight genes with functions related to pod and seed sets. Finally, haplotype analysis and quantitative reverse transcriptase real-time PCR were carried to verify the candidate genes. Four of these genes had different haplotypes in the resource group, and the differences in the phenotype were highly significant. Moreover, the differences in the expression of the four genes during pod and seed development were also significant. These four genes were probably related to the development process underlying the three-seeded pod in soybean. Herein, we discuss the past and present studies related to the three-seeded pod trait in soybean.Candong LiCandong LiCandong LiHongwei JiangYingying LiChunyan LiuZhaoming QiXiaoxia WuZhanguo ZhangZhenbang HuRongsheng ZhuTai GuoZhixin WangWei ZhengZhenyu ZhangHaihong ZhaoNannan WangNannan WangDapeng ShanDawei XinFeishi LuanQingshan ChenFrontiers Media S.A.articlesoybeanthree seeded podsQTL fine mappingcandidate genes analysisgene function identificationPlant cultureSB1-1110ENFrontiers in Plant Science, Vol 12 (2021) |
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DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
soybean three seeded pods QTL fine mapping candidate genes analysis gene function identification Plant culture SB1-1110 |
| spellingShingle |
soybean three seeded pods QTL fine mapping candidate genes analysis gene function identification Plant culture SB1-1110 Candong Li Candong Li Candong Li Hongwei Jiang Yingying Li Chunyan Liu Zhaoming Qi Xiaoxia Wu Zhanguo Zhang Zhenbang Hu Rongsheng Zhu Tai Guo Zhixin Wang Wei Zheng Zhenyu Zhang Haihong Zhao Nannan Wang Nannan Wang Dapeng Shan Dawei Xin Feishi Luan Qingshan Chen Identification of Finely Mapped Quantitative Trait Locus and Candidate Gene Mining for the Three-Seeded Pod Trait in Soybean |
| description |
The three-seeded pod number is an important trait that positively influences soybean yield. Soybean variety with increased three-seeded pod number contributes to the seed number/plant and higher yield. The candidate genes of the three-seeded pod may be the key for improving soybean yield. In this study, identification and validation of candidate genes for three-seeded pod has been carried out. First, a total of 36 quantitative trait locus (QTL) were detected from the investigation of recombinant inbred lines including 147 individuals derived from a cross between Charleston and Dongning 594 cultivars. Five consensus QTLs were integrated. Second, an introgressed line CSSL-182 carrying the target segment for the trait from the donor parent was selected to verify the consensus QTL based on its phenotype. Third, a secondary group was constructed by backcrossing with CSSL-182, and two QTLs were confirmed. There were a total of 162 genes in the two QTLs. The mining of candidate genes resulted in the annotation of eight genes with functions related to pod and seed sets. Finally, haplotype analysis and quantitative reverse transcriptase real-time PCR were carried to verify the candidate genes. Four of these genes had different haplotypes in the resource group, and the differences in the phenotype were highly significant. Moreover, the differences in the expression of the four genes during pod and seed development were also significant. These four genes were probably related to the development process underlying the three-seeded pod in soybean. Herein, we discuss the past and present studies related to the three-seeded pod trait in soybean. |
| format |
article |
| author |
Candong Li Candong Li Candong Li Hongwei Jiang Yingying Li Chunyan Liu Zhaoming Qi Xiaoxia Wu Zhanguo Zhang Zhenbang Hu Rongsheng Zhu Tai Guo Zhixin Wang Wei Zheng Zhenyu Zhang Haihong Zhao Nannan Wang Nannan Wang Dapeng Shan Dawei Xin Feishi Luan Qingshan Chen |
| author_facet |
Candong Li Candong Li Candong Li Hongwei Jiang Yingying Li Chunyan Liu Zhaoming Qi Xiaoxia Wu Zhanguo Zhang Zhenbang Hu Rongsheng Zhu Tai Guo Zhixin Wang Wei Zheng Zhenyu Zhang Haihong Zhao Nannan Wang Nannan Wang Dapeng Shan Dawei Xin Feishi Luan Qingshan Chen |
| author_sort |
Candong Li |
| title |
Identification of Finely Mapped Quantitative Trait Locus and Candidate Gene Mining for the Three-Seeded Pod Trait in Soybean |
| title_short |
Identification of Finely Mapped Quantitative Trait Locus and Candidate Gene Mining for the Three-Seeded Pod Trait in Soybean |
| title_full |
Identification of Finely Mapped Quantitative Trait Locus and Candidate Gene Mining for the Three-Seeded Pod Trait in Soybean |
| title_fullStr |
Identification of Finely Mapped Quantitative Trait Locus and Candidate Gene Mining for the Three-Seeded Pod Trait in Soybean |
| title_full_unstemmed |
Identification of Finely Mapped Quantitative Trait Locus and Candidate Gene Mining for the Three-Seeded Pod Trait in Soybean |
| title_sort |
identification of finely mapped quantitative trait locus and candidate gene mining for the three-seeded pod trait in soybean |
| publisher |
Frontiers Media S.A. |
| publishDate |
2021 |
| url |
https://doaj.org/article/0d6808bc08c549d484fb256f5dde12f5 |
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