Pyramiding of Low Chalkiness QTLs Is an Effective Way to Reduce Rice Chalkiness
Abstract Rice chalkiness is a key limiting factor of high-quality rice. The breeding of low chalkiness varieties has always been a challenging task due to the complexity of chalkiness and its susceptibility to environmental factors. In previous studies, we identified six QTLs for the percentage of g...
| Main Authors: | , , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2024-01-01
|
| Series: | Rice |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s12284-023-00680-x |
| _version_ | 1797355546557284352 |
|---|---|
| author | Weifeng Yang Songliang Chen Qingwen Hao Haitao Zhu Quanya Tan Shaojun Lin Guodong Chen Zhan Li Suhong Bu Zupei Liu Guifu Liu Shaokui Wang Guiquan Zhang |
| author_facet | Weifeng Yang Songliang Chen Qingwen Hao Haitao Zhu Quanya Tan Shaojun Lin Guodong Chen Zhan Li Suhong Bu Zupei Liu Guifu Liu Shaokui Wang Guiquan Zhang |
| author_sort | Weifeng Yang |
| collection | DOAJ |
| description | Abstract Rice chalkiness is a key limiting factor of high-quality rice. The breeding of low chalkiness varieties has always been a challenging task due to the complexity of chalkiness and its susceptibility to environmental factors. In previous studies, we identified six QTLs for the percentage of grain chalkiness (PGC), named qPGC5, qPGC6, qPGC8.1, qPGC8.2, qPGC9 and qPGC11, using single-segment substitution lines (SSSLs) with genetic background of Huajingxian 74 (HJX74). In this study, we utilized the six low chalkiness QTLs to develop 17 pyramiding lines with 2–4 QTLs. The results showed that the PGC decreased with the increase of QTLs in the pyramiding lines. The pyramiding lines with 4 QTLs significantly reduced the chalkiness of rice and reached the best quality level. Among the six QTLs, qPGC5 and qPGC6 showed greater additive effects and were classified as Group A, while the other four QTLs showed smaller additive effects and were classified as Group B. In pyramiding lines, although the presence of epistasis, additivity remained the main component of QTL effects. qPGC5 and qPGC6 showed stronger ability to reduce rice chalkiness, particularly in the environment of high temperature (HT) in the first cropping season (FCS). Our research demonstrates that by pyramiding low chalkiness QTLs, it is feasible to develop the high-quality rice varieties with low chalkiness at the best quality level even in the HT environment of FCS. |
| first_indexed | 2024-03-08T14:12:43Z |
| format | Article |
| id | doaj.art-f4b2552fda8d44368de828ece85504c6 |
| institution | Directory Open Access Journal |
| issn | 1939-8425 1939-8433 |
| language | English |
| last_indexed | 2024-03-08T14:12:43Z |
| publishDate | 2024-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Rice |
| spelling | doaj.art-f4b2552fda8d44368de828ece85504c62024-01-14T12:36:33ZengSpringerOpenRice1939-84251939-84332024-01-0117111110.1186/s12284-023-00680-xPyramiding of Low Chalkiness QTLs Is an Effective Way to Reduce Rice ChalkinessWeifeng Yang0Songliang Chen1Qingwen Hao2Haitao Zhu3Quanya Tan4Shaojun Lin5Guodong Chen6Zhan Li7Suhong Bu8Zupei Liu9Guifu Liu10Shaokui Wang11Guiquan Zhang12Guangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural UniversityGuangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural UniversityGuangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural UniversityGuangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural UniversityGuangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural UniversityGuangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural UniversityGuangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural UniversityGuangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural UniversityGuangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural UniversityGuangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural UniversityGuangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural UniversityGuangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural UniversityGuangdong Provincial Key Laboratory of Plant Molecular Breeding, State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, South China Agricultural UniversityAbstract Rice chalkiness is a key limiting factor of high-quality rice. The breeding of low chalkiness varieties has always been a challenging task due to the complexity of chalkiness and its susceptibility to environmental factors. In previous studies, we identified six QTLs for the percentage of grain chalkiness (PGC), named qPGC5, qPGC6, qPGC8.1, qPGC8.2, qPGC9 and qPGC11, using single-segment substitution lines (SSSLs) with genetic background of Huajingxian 74 (HJX74). In this study, we utilized the six low chalkiness QTLs to develop 17 pyramiding lines with 2–4 QTLs. The results showed that the PGC decreased with the increase of QTLs in the pyramiding lines. The pyramiding lines with 4 QTLs significantly reduced the chalkiness of rice and reached the best quality level. Among the six QTLs, qPGC5 and qPGC6 showed greater additive effects and were classified as Group A, while the other four QTLs showed smaller additive effects and were classified as Group B. In pyramiding lines, although the presence of epistasis, additivity remained the main component of QTL effects. qPGC5 and qPGC6 showed stronger ability to reduce rice chalkiness, particularly in the environment of high temperature (HT) in the first cropping season (FCS). Our research demonstrates that by pyramiding low chalkiness QTLs, it is feasible to develop the high-quality rice varieties with low chalkiness at the best quality level even in the HT environment of FCS.https://doi.org/10.1186/s12284-023-00680-xRice chalkinessHigh temperatureQTL pyramidingEpistasisRice qualityBreeding |
| spellingShingle | Weifeng Yang Songliang Chen Qingwen Hao Haitao Zhu Quanya Tan Shaojun Lin Guodong Chen Zhan Li Suhong Bu Zupei Liu Guifu Liu Shaokui Wang Guiquan Zhang Pyramiding of Low Chalkiness QTLs Is an Effective Way to Reduce Rice Chalkiness Rice Rice chalkiness High temperature QTL pyramiding Epistasis Rice quality Breeding |
| title | Pyramiding of Low Chalkiness QTLs Is an Effective Way to Reduce Rice Chalkiness |
| title_full | Pyramiding of Low Chalkiness QTLs Is an Effective Way to Reduce Rice Chalkiness |
| title_fullStr | Pyramiding of Low Chalkiness QTLs Is an Effective Way to Reduce Rice Chalkiness |
| title_full_unstemmed | Pyramiding of Low Chalkiness QTLs Is an Effective Way to Reduce Rice Chalkiness |
| title_short | Pyramiding of Low Chalkiness QTLs Is an Effective Way to Reduce Rice Chalkiness |
| title_sort | pyramiding of low chalkiness qtls is an effective way to reduce rice chalkiness |
| topic | Rice chalkiness High temperature QTL pyramiding Epistasis Rice quality Breeding |
| url | https://doi.org/10.1186/s12284-023-00680-x |
| work_keys_str_mv | AT weifengyang pyramidingoflowchalkinessqtlsisaneffectivewaytoreducericechalkiness AT songliangchen pyramidingoflowchalkinessqtlsisaneffectivewaytoreducericechalkiness AT qingwenhao pyramidingoflowchalkinessqtlsisaneffectivewaytoreducericechalkiness AT haitaozhu pyramidingoflowchalkinessqtlsisaneffectivewaytoreducericechalkiness AT quanyatan pyramidingoflowchalkinessqtlsisaneffectivewaytoreducericechalkiness AT shaojunlin pyramidingoflowchalkinessqtlsisaneffectivewaytoreducericechalkiness AT guodongchen pyramidingoflowchalkinessqtlsisaneffectivewaytoreducericechalkiness AT zhanli pyramidingoflowchalkinessqtlsisaneffectivewaytoreducericechalkiness AT suhongbu pyramidingoflowchalkinessqtlsisaneffectivewaytoreducericechalkiness AT zupeiliu pyramidingoflowchalkinessqtlsisaneffectivewaytoreducericechalkiness AT guifuliu pyramidingoflowchalkinessqtlsisaneffectivewaytoreducericechalkiness AT shaokuiwang pyramidingoflowchalkinessqtlsisaneffectivewaytoreducericechalkiness AT guiquanzhang pyramidingoflowchalkinessqtlsisaneffectivewaytoreducericechalkiness |