Detection of QTLs controlling heading date in the process of rice development at two environments
Heading date (HD) is a major determinant of the regional and seasonal adaptation of rice varieties. In order to elucidate the quantitative trait loci (QTL) for HD in the process of rice development, a doubled haploid (DH) population was employed to map QTLs controlling HD at different heading stages...
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| Language: | English |
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Zhejiang University Press
2002-01-01
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| Series: | 浙江大学学报. 农业与生命科学版 |
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| Online Access: | https://www.academax.com/doi/10.3785/1008-9209.2002.01.0027 |
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| author | BAO Jin-song BAO Zhi-yi HE Ping ZHU Li-huang |
| author_facet | BAO Jin-song BAO Zhi-yi HE Ping ZHU Li-huang |
| author_sort | BAO Jin-song |
| collection | DOAJ |
| description | Heading date (HD) is a major determinant of the regional and seasonal adaptation of rice varieties. In order to elucidate the quantitative trait loci (QTL) for HD in the process of rice development, a doubled haploid (DH) population was employed to map QTLs controlling HD at different heading stages in two locations, Hainan (HN) and Hangzhou (HZ) in China. The results indicated that a total of 8 QTL were identified at two environments and seven stages which were located on chromosomes 1, 6, 8, 10 and 12. Two QTL, qHD-1-1 and qHD-12 could be detected at both environments, the others were only detected at one environment. One QTL in HN, qHD-10-1, exerted its effect during 75-85 DAG (days after germination) and could explain 19.6% of the total variation. A major QTL, qHD-8-1 in HZ, showed its effect during 80-90 DAG. The other QTL were only detected in one stage, such as qHD-6 and qHD-10-2 were both specific for 80 DAG in HN, while qHD-1-2 and qHD-8-2 were specific for 85 and 80 DAG in HZ, respectively. Based on the QTL mapping results, we proposed a QTL effect timing model for the HD-controlling QTLs. |
| format | Article |
| id | doaj-art-a9ffb995031f4623a2c25eb0c797c71a |
| institution | DOAJ |
| issn | 1008-9209 2097-5155 |
| language | English |
| publishDate | 2002-01-01 |
| publisher | Zhejiang University Press |
| record_format | Article |
| series | 浙江大学学报. 农业与生命科学版 |
| spelling | doaj-art-a9ffb995031f4623a2c25eb0c797c71a2025-08-20T02:47:45ZengZhejiang University Press浙江大学学报. 农业与生命科学版1008-92092097-51552002-01-0128273210.3785/1008-9209.2002.01.002710089209Detection of QTLs controlling heading date in the process of rice development at two environmentsBAO Jin-songBAO Zhi-yiHE PingZHU Li-huangHeading date (HD) is a major determinant of the regional and seasonal adaptation of rice varieties. In order to elucidate the quantitative trait loci (QTL) for HD in the process of rice development, a doubled haploid (DH) population was employed to map QTLs controlling HD at different heading stages in two locations, Hainan (HN) and Hangzhou (HZ) in China. The results indicated that a total of 8 QTL were identified at two environments and seven stages which were located on chromosomes 1, 6, 8, 10 and 12. Two QTL, qHD-1-1 and qHD-12 could be detected at both environments, the others were only detected at one environment. One QTL in HN, qHD-10-1, exerted its effect during 75-85 DAG (days after germination) and could explain 19.6% of the total variation. A major QTL, qHD-8-1 in HZ, showed its effect during 80-90 DAG. The other QTL were only detected in one stage, such as qHD-6 and qHD-10-2 were both specific for 80 DAG in HN, while qHD-1-2 and qHD-8-2 were specific for 85 and 80 DAG in HZ, respectively. Based on the QTL mapping results, we proposed a QTL effect timing model for the HD-controlling QTLs.https://www.academax.com/doi/10.3785/1008-9209.2002.01.0027riceheading datequantitative trait locus (QTL) |
| spellingShingle | BAO Jin-song BAO Zhi-yi HE Ping ZHU Li-huang Detection of QTLs controlling heading date in the process of rice development at two environments 浙江大学学报. 农业与生命科学版 rice heading date quantitative trait locus (QTL) |
| title | Detection of QTLs controlling heading date in the process of rice development at two environments |
| title_full | Detection of QTLs controlling heading date in the process of rice development at two environments |
| title_fullStr | Detection of QTLs controlling heading date in the process of rice development at two environments |
| title_full_unstemmed | Detection of QTLs controlling heading date in the process of rice development at two environments |
| title_short | Detection of QTLs controlling heading date in the process of rice development at two environments |
| title_sort | detection of qtls controlling heading date in the process of rice development at two environments |
| topic | rice heading date quantitative trait locus (QTL) |
| url | https://www.academax.com/doi/10.3785/1008-9209.2002.01.0027 |
| work_keys_str_mv | AT baojinsong detectionofqtlscontrollingheadingdateintheprocessofricedevelopmentattwoenvironments AT baozhiyi detectionofqtlscontrollingheadingdateintheprocessofricedevelopmentattwoenvironments AT heping detectionofqtlscontrollingheadingdateintheprocessofricedevelopmentattwoenvironments AT zhulihuang detectionofqtlscontrollingheadingdateintheprocessofricedevelopmentattwoenvironments |