Genetic diversity and structure of indica rice varieties from two heterotic pools of southern China and IRRI
Investigation of genetic diversity and the relationships among varieties and breeding lines is of great importance to facilitate parental selection in the development of inbred and hybrid rice varieties and in the construction of heterotic groups. The technology of single nucleotide polymorphism (SN...
| Autores principales: | , , , , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
Cambridge University Press
2012
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/165730 |
| _version_ | 1855531249367515136 |
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| author | Xie, Fangming Guo, Longbiao Ren, Guangjun Hu, Peisong Wang, Feng Xu, Jianlong Li, Xinqi Qiu, Fulin dela Paz, Madonna Angelita |
| author_browse | Guo, Longbiao Hu, Peisong Li, Xinqi Qiu, Fulin Ren, Guangjun Wang, Feng Xie, Fangming Xu, Jianlong dela Paz, Madonna Angelita |
| author_facet | Xie, Fangming Guo, Longbiao Ren, Guangjun Hu, Peisong Wang, Feng Xu, Jianlong Li, Xinqi Qiu, Fulin dela Paz, Madonna Angelita |
| author_sort | Xie, Fangming |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Investigation of genetic diversity and the relationships among varieties and breeding lines is of great importance to facilitate parental selection in the development of inbred and hybrid rice varieties and in the construction of heterotic groups. The technology of single nucleotide polymorphism (SNP) is being advanced for the assessment of population diversity and genetic structures. We characterized 215 widely cultivatedindicarice varieties developed in southern China and at the International Rice Research Institute (IRRI) using IRRI-developed SNP oligonucleotide pooled assay (OPA) to provide grouping information of rice mega-varieties for further heterotic pool study. The results revealed that the Chinese varieties were more divergent than the IRRI varieties. Two major subpopulations were clustered for the varieties using a model-based grouping method. The IRRI varieties were closely grouped and separated clearly from the majority of the Chinese varieties. The Chinese varieties were subclustered into three subgroups, but there was no clear evidence to separate the Chinese varieties into subgroups geographically, indicating a great degree of genetic integration of alleles and shared ancestries among those high-yielding modern varieties. |
| format | Journal Article |
| id | CGSpace165730 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2012 |
| publishDateRange | 2012 |
| publishDateSort | 2012 |
| publisher | Cambridge University Press |
| publisherStr | Cambridge University Press |
| record_format | dspace |
| spelling | CGSpace1657302025-02-19T14:26:02Z Genetic diversity and structure of indica rice varieties from two heterotic pools of southern China and IRRI Xie, Fangming Guo, Longbiao Ren, Guangjun Hu, Peisong Wang, Feng Xu, Jianlong Li, Xinqi Qiu, Fulin dela Paz, Madonna Angelita alleles genetic diversity genetic parameters genetic resources heterosis hybrids plant breeding polymorphism single nucleotide polymorphism varieties yields Investigation of genetic diversity and the relationships among varieties and breeding lines is of great importance to facilitate parental selection in the development of inbred and hybrid rice varieties and in the construction of heterotic groups. The technology of single nucleotide polymorphism (SNP) is being advanced for the assessment of population diversity and genetic structures. We characterized 215 widely cultivatedindicarice varieties developed in southern China and at the International Rice Research Institute (IRRI) using IRRI-developed SNP oligonucleotide pooled assay (OPA) to provide grouping information of rice mega-varieties for further heterotic pool study. The results revealed that the Chinese varieties were more divergent than the IRRI varieties. Two major subpopulations were clustered for the varieties using a model-based grouping method. The IRRI varieties were closely grouped and separated clearly from the majority of the Chinese varieties. The Chinese varieties were subclustered into three subgroups, but there was no clear evidence to separate the Chinese varieties into subgroups geographically, indicating a great degree of genetic integration of alleles and shared ancestries among those high-yielding modern varieties. 2012-12 2024-12-19T12:55:24Z 2024-12-19T12:55:24Z Journal Article https://hdl.handle.net/10568/165730 en Cambridge University Press Xie, Fangming; Guo, Longbiao; Ren, Guangjun; Hu, Peisong; Wang, Feng; Xu, Jianlong; Li, Xinqi; Qiu, Fulin and dela Paz, Madonna Angelita. 2012. Genetic diversity and structure of indica rice varieties from two heterotic pools of southern China and IRRI. Plant Genet. Resour., Volume 10 no. 3 p. 186-193 |
| spellingShingle | alleles genetic diversity genetic parameters genetic resources heterosis hybrids plant breeding polymorphism single nucleotide polymorphism varieties yields Xie, Fangming Guo, Longbiao Ren, Guangjun Hu, Peisong Wang, Feng Xu, Jianlong Li, Xinqi Qiu, Fulin dela Paz, Madonna Angelita Genetic diversity and structure of indica rice varieties from two heterotic pools of southern China and IRRI |
| title | Genetic diversity and structure of indica rice varieties from two heterotic pools of southern China and IRRI |
| title_full | Genetic diversity and structure of indica rice varieties from two heterotic pools of southern China and IRRI |
| title_fullStr | Genetic diversity and structure of indica rice varieties from two heterotic pools of southern China and IRRI |
| title_full_unstemmed | Genetic diversity and structure of indica rice varieties from two heterotic pools of southern China and IRRI |
| title_short | Genetic diversity and structure of indica rice varieties from two heterotic pools of southern China and IRRI |
| title_sort | genetic diversity and structure of indica rice varieties from two heterotic pools of southern china and irri |
| topic | alleles genetic diversity genetic parameters genetic resources heterosis hybrids plant breeding polymorphism single nucleotide polymorphism varieties yields |
| url | https://hdl.handle.net/10568/165730 |
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