Dissecting combining ability effect in a rice NCII-III population provides insights into heterosis in indica-japonica cross
Abstract Background Combining ability is a measure for selecting elite parents that make the highest contributions to hybrid performance. However, the genetic bases of combining ability and how they contributed to heterosis is seldomly known. Results We constructed a both NCII and NCIII population d...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2017-08-01
|
| Series: | Rice |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1186/s12284-017-0179-9 |
| _version_ | 1811307742660395008 |
|---|---|
| author | Hao Zhou Duo Xia Jing Zeng Gonghao Jiang Yuqing He |
| author_facet | Hao Zhou Duo Xia Jing Zeng Gonghao Jiang Yuqing He |
| author_sort | Hao Zhou |
| collection | DOAJ |
| description | Abstract Background Combining ability is a measure for selecting elite parents that make the highest contributions to hybrid performance. However, the genetic bases of combining ability and how they contributed to heterosis is seldomly known. Results We constructed a both NCII and NCIII population derived from an indica-japonica cross to study the relationship among parental performance, combining ability and hybrid performance of 11 agronomic traits. Among them, specific combining ability is more important to grain yield than parental performance and general combining ability. We performed linkage analyses to phenotypic values and combining ability of all 11 traits in Doubled haploid lines and its two backcross populations and identified 108 QTLs in total. Among these QTLs, four known loci, Sd1, Ghd7, Ghd8 and DEP1 contribute a lot to GCA effects of agronomic traits except grain yield and seed setting rate. Three QTLs, Ghd8, S5 and qS12, contribute a lot to SCA effects of grain yield and present overdominace. Conclusions Our study provides insights into the genetic bases of combining ability and heterosis and will promote the improvements of indica-japonica hybrid breeding. |
| first_indexed | 2024-04-13T09:09:49Z |
| format | Article |
| id | doaj.art-499c854c2ef74a7fb4a219cf2d911f88 |
| institution | Directory Open Access Journal |
| issn | 1939-8425 1939-8433 |
| language | English |
| last_indexed | 2024-04-13T09:09:49Z |
| publishDate | 2017-08-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Rice |
| spelling | doaj.art-499c854c2ef74a7fb4a219cf2d911f882022-12-22T02:52:54ZengSpringerOpenRice1939-84251939-84332017-08-011011910.1186/s12284-017-0179-9Dissecting combining ability effect in a rice NCII-III population provides insights into heterosis in indica-japonica crossHao Zhou0Duo Xia1Jing Zeng2Gonghao Jiang3Yuqing He4National Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research, Huazhong Agricultural UniversityNational Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research, Huazhong Agricultural UniversityNational Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research, Huazhong Agricultural UniversityNational Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research, Huazhong Agricultural UniversityNational Key Laboratory of Crop Genetic Improvement and National Centre of Plant Gene Research, Huazhong Agricultural UniversityAbstract Background Combining ability is a measure for selecting elite parents that make the highest contributions to hybrid performance. However, the genetic bases of combining ability and how they contributed to heterosis is seldomly known. Results We constructed a both NCII and NCIII population derived from an indica-japonica cross to study the relationship among parental performance, combining ability and hybrid performance of 11 agronomic traits. Among them, specific combining ability is more important to grain yield than parental performance and general combining ability. We performed linkage analyses to phenotypic values and combining ability of all 11 traits in Doubled haploid lines and its two backcross populations and identified 108 QTLs in total. Among these QTLs, four known loci, Sd1, Ghd7, Ghd8 and DEP1 contribute a lot to GCA effects of agronomic traits except grain yield and seed setting rate. Three QTLs, Ghd8, S5 and qS12, contribute a lot to SCA effects of grain yield and present overdominace. Conclusions Our study provides insights into the genetic bases of combining ability and heterosis and will promote the improvements of indica-japonica hybrid breeding.http://link.springer.com/article/10.1186/s12284-017-0179-9Oryza sativa L.Combining abilityMating designindica-jaonica crossLinkage analysisHeterosis |
| spellingShingle | Hao Zhou Duo Xia Jing Zeng Gonghao Jiang Yuqing He Dissecting combining ability effect in a rice NCII-III population provides insights into heterosis in indica-japonica cross Rice Oryza sativa L. Combining ability Mating design indica-jaonica cross Linkage analysis Heterosis |
| title | Dissecting combining ability effect in a rice NCII-III population provides insights into heterosis in indica-japonica cross |
| title_full | Dissecting combining ability effect in a rice NCII-III population provides insights into heterosis in indica-japonica cross |
| title_fullStr | Dissecting combining ability effect in a rice NCII-III population provides insights into heterosis in indica-japonica cross |
| title_full_unstemmed | Dissecting combining ability effect in a rice NCII-III population provides insights into heterosis in indica-japonica cross |
| title_short | Dissecting combining ability effect in a rice NCII-III population provides insights into heterosis in indica-japonica cross |
| title_sort | dissecting combining ability effect in a rice ncii iii population provides insights into heterosis in indica japonica cross |
| topic | Oryza sativa L. Combining ability Mating design indica-jaonica cross Linkage analysis Heterosis |
| url | http://link.springer.com/article/10.1186/s12284-017-0179-9 |
| work_keys_str_mv | AT haozhou dissectingcombiningabilityeffectinaricenciiiiipopulationprovidesinsightsintoheterosisinindicajaponicacross AT duoxia dissectingcombiningabilityeffectinaricenciiiiipopulationprovidesinsightsintoheterosisinindicajaponicacross AT jingzeng dissectingcombiningabilityeffectinaricenciiiiipopulationprovidesinsightsintoheterosisinindicajaponicacross AT gonghaojiang dissectingcombiningabilityeffectinaricenciiiiipopulationprovidesinsightsintoheterosisinindicajaponicacross AT yuqinghe dissectingcombiningabilityeffectinaricenciiiiipopulationprovidesinsightsintoheterosisinindicajaponicacross |