Genetic Dissection of the Major Quantitative Trait Locus (qSE11), and Its Validation As the Major Influence on the Rate of Stigma Exsertion in Rice (Oryza sativa L.)
The rate of stigma exsertion (SE) is an important trait in rice breeding because the efficiency of hybrid rice seed production can be improved by increasing the percentage of stigmas that exsert. In this study, we developed a near isogenic line (NIL) from two parents, XieqingzaoB (XQZB) and Zhonghoi...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2017-11-01
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| Series: | Frontiers in Plant Science |
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| Online Access: | http://journal.frontiersin.org/article/10.3389/fpls.2017.01818/full |
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| author | Md Habibur Rahman Md Habibur Rahman Yingxing Zhang Keqin Zhang Md Sazzadur Rahman Hirendra N. Barman Hirendra N. Barman Aamir Riaz Yuyu Chen Weixun Wu Xiaodeng Zhan Liyong Cao Shihua Cheng |
| author_facet | Md Habibur Rahman Md Habibur Rahman Yingxing Zhang Keqin Zhang Md Sazzadur Rahman Hirendra N. Barman Hirendra N. Barman Aamir Riaz Yuyu Chen Weixun Wu Xiaodeng Zhan Liyong Cao Shihua Cheng |
| author_sort | Md Habibur Rahman |
| collection | DOAJ |
| description | The rate of stigma exsertion (SE) is an important trait in rice breeding because the efficiency of hybrid rice seed production can be improved by increasing the percentage of stigmas that exsert. In this study, we developed a near isogenic line (NIL) from two parents, XieqingzaoB (XQZB) and Zhonghoi9308 (ZH9308), which have high and low SE rates in that order. In our previous study, we employed 75 chromosome segment substitution lines (CSSLs) and analyzed quantitative trait loci (QTLs) for their influence on SE rate. The single gene QTL (qSE11), which is located on chromosome 11, was responsible for this trait. In this study, we focused on one of the CSSLs (C65), namely, the NIL (qSE11XB). It contains an introgression segment of XQZB in the genetic background of ZH9308, and exhibits a significantly higher SE rate than that of the parents. We demonstrated that qSE11 regulated both the single and the dual SE rates. They both contribute to the total SE rate. Genetic analysis revealed that qSE11 acted as a single Mendelian factor and that the allele from XQZB increased the SE rate. The validity of our conclusions was established when C65 was used to develop secondary F2 (BC5F2) and F2:3 (BC5F2:3) populations by backcrossing to ZH9308, with subsequent selfing. We entered 3600 plants from the F2 population and 3200 from the F2:3 populations into a genetic dissection program and dissected the major QTL qSE11 to a 350.7-kb region located on chromosome 11. This study will contribute to the future isolation of candidate genes of SE and will play a vital role in future hybrid rice seed production programs. |
| first_indexed | 2024-12-10T22:49:58Z |
| format | Article |
| id | doaj.art-a69c40f1fbd04b1d9b2dfde38f7a3386 |
| institution | Directory Open Access Journal |
| issn | 1664-462X |
| language | English |
| last_indexed | 2024-12-10T22:49:58Z |
| publishDate | 2017-11-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Plant Science |
| spelling | doaj.art-a69c40f1fbd04b1d9b2dfde38f7a33862022-12-22T01:30:27ZengFrontiers Media S.A.Frontiers in Plant Science1664-462X2017-11-01810.3389/fpls.2017.01818254455Genetic Dissection of the Major Quantitative Trait Locus (qSE11), and Its Validation As the Major Influence on the Rate of Stigma Exsertion in Rice (Oryza sativa L.)Md Habibur Rahman0Md Habibur Rahman1Yingxing Zhang2Keqin Zhang3Md Sazzadur Rahman4Hirendra N. Barman5Hirendra N. Barman6Aamir Riaz7Yuyu Chen8Weixun Wu9Xiaodeng Zhan10Liyong Cao11Shihua Cheng12Crop Genetics and Breeding, China National Rice Research Institute, Hangzhou, ChinaDepartment of Agricultural Extension, Ministry of Agriculture, Dhaka, BangladeshCrop Genetics and Breeding, China National Rice Research Institute, Hangzhou, ChinaCrop Genetics and Breeding, China National Rice Research Institute, Hangzhou, ChinaPlant Physiology Division, Bangladesh Rice Research Institute, Gazipur, BangladeshCrop Genetics and Breeding, China National Rice Research Institute, Hangzhou, ChinaPlant Physiology Division, Bangladesh Rice Research Institute, Gazipur, BangladeshCrop Genetics and Breeding, China National Rice Research Institute, Hangzhou, ChinaCrop Genetics and Breeding, China National Rice Research Institute, Hangzhou, ChinaCrop Genetics and Breeding, China National Rice Research Institute, Hangzhou, ChinaCrop Genetics and Breeding, China National Rice Research Institute, Hangzhou, ChinaCrop Genetics and Breeding, China National Rice Research Institute, Hangzhou, ChinaCrop Genetics and Breeding, China National Rice Research Institute, Hangzhou, ChinaThe rate of stigma exsertion (SE) is an important trait in rice breeding because the efficiency of hybrid rice seed production can be improved by increasing the percentage of stigmas that exsert. In this study, we developed a near isogenic line (NIL) from two parents, XieqingzaoB (XQZB) and Zhonghoi9308 (ZH9308), which have high and low SE rates in that order. In our previous study, we employed 75 chromosome segment substitution lines (CSSLs) and analyzed quantitative trait loci (QTLs) for their influence on SE rate. The single gene QTL (qSE11), which is located on chromosome 11, was responsible for this trait. In this study, we focused on one of the CSSLs (C65), namely, the NIL (qSE11XB). It contains an introgression segment of XQZB in the genetic background of ZH9308, and exhibits a significantly higher SE rate than that of the parents. We demonstrated that qSE11 regulated both the single and the dual SE rates. They both contribute to the total SE rate. Genetic analysis revealed that qSE11 acted as a single Mendelian factor and that the allele from XQZB increased the SE rate. The validity of our conclusions was established when C65 was used to develop secondary F2 (BC5F2) and F2:3 (BC5F2:3) populations by backcrossing to ZH9308, with subsequent selfing. We entered 3600 plants from the F2 population and 3200 from the F2:3 populations into a genetic dissection program and dissected the major QTL qSE11 to a 350.7-kb region located on chromosome 11. This study will contribute to the future isolation of candidate genes of SE and will play a vital role in future hybrid rice seed production programs.http://journal.frontiersin.org/article/10.3389/fpls.2017.01818/fullstigma exsertion rategenetic dissectionmajor QTL (qSE11)near isogenic linehybrid rice |
| spellingShingle | Md Habibur Rahman Md Habibur Rahman Yingxing Zhang Keqin Zhang Md Sazzadur Rahman Hirendra N. Barman Hirendra N. Barman Aamir Riaz Yuyu Chen Weixun Wu Xiaodeng Zhan Liyong Cao Shihua Cheng Genetic Dissection of the Major Quantitative Trait Locus (qSE11), and Its Validation As the Major Influence on the Rate of Stigma Exsertion in Rice (Oryza sativa L.) Frontiers in Plant Science stigma exsertion rate genetic dissection major QTL (qSE11) near isogenic line hybrid rice |
| title | Genetic Dissection of the Major Quantitative Trait Locus (qSE11), and Its Validation As the Major Influence on the Rate of Stigma Exsertion in Rice (Oryza sativa L.) |
| title_full | Genetic Dissection of the Major Quantitative Trait Locus (qSE11), and Its Validation As the Major Influence on the Rate of Stigma Exsertion in Rice (Oryza sativa L.) |
| title_fullStr | Genetic Dissection of the Major Quantitative Trait Locus (qSE11), and Its Validation As the Major Influence on the Rate of Stigma Exsertion in Rice (Oryza sativa L.) |
| title_full_unstemmed | Genetic Dissection of the Major Quantitative Trait Locus (qSE11), and Its Validation As the Major Influence on the Rate of Stigma Exsertion in Rice (Oryza sativa L.) |
| title_short | Genetic Dissection of the Major Quantitative Trait Locus (qSE11), and Its Validation As the Major Influence on the Rate of Stigma Exsertion in Rice (Oryza sativa L.) |
| title_sort | genetic dissection of the major quantitative trait locus qse11 and its validation as the major influence on the rate of stigma exsertion in rice oryza sativa l |
| topic | stigma exsertion rate genetic dissection major QTL (qSE11) near isogenic line hybrid rice |
| url | http://journal.frontiersin.org/article/10.3389/fpls.2017.01818/full |
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