Comparative mapping and discovery of segregation distortion and linkage disequilibrium across the known fragrance chromosomal regions in a rice F2 population DUPLICATE
Segregation distortion analysis in plant breeding is highly important because deviation factors are occasionally serious barriers for introgression of genes of interest into cultivated species. Also, the identification of major QTLs by high linkage disequilibrium is highly useful for breeders in ord...
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| Format: | Article |
| Language: | English |
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Springer
2015
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| Online Access: | http://psasir.upm.edu.my/id/eprint/44114/ http://psasir.upm.edu.my/id/eprint/44114/1/Comparative%20mapping%20and%20discovery%20of%20segregation%20distortion%20and%20linkage%20disequilibrium%20across%20the%20known%20fragrance%20chromosomal%20regions%20in%20a%20rice%20F2%20population.pdf |
| _version_ | 1848850398805229568 |
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| author | Hashemi, Farahnaz Sadat Golestan Yusop, Mohd Rafii Ismail, Mohd Razi Tengku Muda Mohamed, Mahmud Abdul Rahim, Harun Latif, Mohamad Abd Aslani, Farzad |
| author_facet | Hashemi, Farahnaz Sadat Golestan Yusop, Mohd Rafii Ismail, Mohd Razi Tengku Muda Mohamed, Mahmud Abdul Rahim, Harun Latif, Mohamad Abd Aslani, Farzad |
| author_sort | Hashemi, Farahnaz Sadat Golestan |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Segregation distortion analysis in plant breeding is highly important because deviation factors are occasionally serious barriers for introgression of genes of interest into cultivated species. Also, the identification of major QTLs by high linkage disequilibrium is highly useful for breeders in order for crop improvement programs and the further fine mapping of particular genes. Consequently, simultaneous consideration of segregation distortion and linkage disequilibrium leads to developing fertile hybrids and normal inheritance of agronomically favorable genes. Hence, the goal of this study was to investigate genomic regions known to contain fragrance quantitative trait loci (QTLs) in terms of segregation distortion and linkage disequilibrium pattern, and to seek for a possible relationship between them using codominant markers on chromosomes 3, 4, and 8 in a set containing 189 F2 progenies. For the first time, we discovered the presence and extent of segregation distortion and linkage disequilibrium across the fragrance chromosomal areas of rice. The high frequency of skewed allelic segregations in the chromosomes 3 and 4 supports reports of possible gametic selection (ga) and hybrid sterility (S) genes. Finally, the highest linkage disequilibrium values, the lowest recombination frequency, and the shortest distances were observed in the chromosomal regions without segregation distortion. High linkage disequilibrium correlations between markers at short distances may show that such markers can maintain high linkage disequilibrium with linked QTLs and are influential for both MAS and QTL mapping analysis. Moreover, an indirect relationship between segregation distortion and linkage disequilibrium was detected, and thus linkage disequilibrium maps were introduced as useful diagnostic tools for segregation distortion. |
| first_indexed | 2025-11-15T10:05:40Z |
| format | Article |
| id | upm-44114 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:05:40Z |
| publishDate | 2015 |
| publisher | Springer |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-441142021-12-01T06:53:25Z http://psasir.upm.edu.my/id/eprint/44114/ Comparative mapping and discovery of segregation distortion and linkage disequilibrium across the known fragrance chromosomal regions in a rice F2 population DUPLICATE Hashemi, Farahnaz Sadat Golestan Yusop, Mohd Rafii Ismail, Mohd Razi Tengku Muda Mohamed, Mahmud Abdul Rahim, Harun Latif, Mohamad Abd Aslani, Farzad Segregation distortion analysis in plant breeding is highly important because deviation factors are occasionally serious barriers for introgression of genes of interest into cultivated species. Also, the identification of major QTLs by high linkage disequilibrium is highly useful for breeders in order for crop improvement programs and the further fine mapping of particular genes. Consequently, simultaneous consideration of segregation distortion and linkage disequilibrium leads to developing fertile hybrids and normal inheritance of agronomically favorable genes. Hence, the goal of this study was to investigate genomic regions known to contain fragrance quantitative trait loci (QTLs) in terms of segregation distortion and linkage disequilibrium pattern, and to seek for a possible relationship between them using codominant markers on chromosomes 3, 4, and 8 in a set containing 189 F2 progenies. For the first time, we discovered the presence and extent of segregation distortion and linkage disequilibrium across the fragrance chromosomal areas of rice. The high frequency of skewed allelic segregations in the chromosomes 3 and 4 supports reports of possible gametic selection (ga) and hybrid sterility (S) genes. Finally, the highest linkage disequilibrium values, the lowest recombination frequency, and the shortest distances were observed in the chromosomal regions without segregation distortion. High linkage disequilibrium correlations between markers at short distances may show that such markers can maintain high linkage disequilibrium with linked QTLs and are influential for both MAS and QTL mapping analysis. Moreover, an indirect relationship between segregation distortion and linkage disequilibrium was detected, and thus linkage disequilibrium maps were introduced as useful diagnostic tools for segregation distortion. Springer 2015 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/44114/1/Comparative%20mapping%20and%20discovery%20of%20segregation%20distortion%20and%20linkage%20disequilibrium%20across%20the%20known%20fragrance%20chromosomal%20regions%20in%20a%20rice%20F2%20population.pdf Hashemi, Farahnaz Sadat Golestan and Yusop, Mohd Rafii and Ismail, Mohd Razi and Tengku Muda Mohamed, Mahmud and Abdul Rahim, Harun and Latif, Mohamad Abd and Aslani, Farzad (2015) Comparative mapping and discovery of segregation distortion and linkage disequilibrium across the known fragrance chromosomal regions in a rice F2 population DUPLICATE. Euphytica, 204 (2015). pp. 557-569. ISSN 0014-2336; ESSN: 1573-5060 https://agris.fao.org/agris-search/search.do?recordID=US201600127646 10.1007/s10681-014-1322-y |
| spellingShingle | Hashemi, Farahnaz Sadat Golestan Yusop, Mohd Rafii Ismail, Mohd Razi Tengku Muda Mohamed, Mahmud Abdul Rahim, Harun Latif, Mohamad Abd Aslani, Farzad Comparative mapping and discovery of segregation distortion and linkage disequilibrium across the known fragrance chromosomal regions in a rice F2 population DUPLICATE |
| title | Comparative mapping and discovery of segregation distortion and linkage disequilibrium across the known fragrance chromosomal regions in a rice F2 population DUPLICATE |
| title_full | Comparative mapping and discovery of segregation distortion and linkage disequilibrium across the known fragrance chromosomal regions in a rice F2 population DUPLICATE |
| title_fullStr | Comparative mapping and discovery of segregation distortion and linkage disequilibrium across the known fragrance chromosomal regions in a rice F2 population DUPLICATE |
| title_full_unstemmed | Comparative mapping and discovery of segregation distortion and linkage disequilibrium across the known fragrance chromosomal regions in a rice F2 population DUPLICATE |
| title_short | Comparative mapping and discovery of segregation distortion and linkage disequilibrium across the known fragrance chromosomal regions in a rice F2 population DUPLICATE |
| title_sort | comparative mapping and discovery of segregation distortion and linkage disequilibrium across the known fragrance chromosomal regions in a rice f2 population duplicate |
| url | http://psasir.upm.edu.my/id/eprint/44114/ http://psasir.upm.edu.my/id/eprint/44114/ http://psasir.upm.edu.my/id/eprint/44114/ http://psasir.upm.edu.my/id/eprint/44114/1/Comparative%20mapping%20and%20discovery%20of%20segregation%20distortion%20and%20linkage%20disequilibrium%20across%20the%20known%20fragrance%20chromosomal%20regions%20in%20a%20rice%20F2%20population.pdf |