QTL analysis for yield related traits using populations derived from an indica-japonica hybrid in rice (Oryza sativaL.)
Introgression has been achieved from a wild species Oryza minuta (2n = 48, BBCC, Acc No.101141) into O. sativa subsp. indica IR71033-121-15. This introgression line was developed at International Rice Research Institute (IRRI) through embryo rescue as well as three backcrosses using IR31917-45-3-2 a...
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| Format: | Article |
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Czech Academy of Agricultural Sciences
2008-09-01
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| Series: | Czech Journal of Genetics and Plant Breeding |
| Subjects: | |
| Online Access: | https://cjgpb.agriculturejournals.cz/artkey/cjg-200803-0002_qtl-analysis-for-yield-related-traits-using-populations-derived-from-an-indica-japonica-hybrid-in-rice-oryza-s.php |
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| author | Lutfor Rahman Most Sakina Khanam Hee-Jong Koh |
| author_facet | Lutfor Rahman Most Sakina Khanam Hee-Jong Koh |
| author_sort | Lutfor Rahman |
| collection | DOAJ |
| description | Introgression has been achieved from a wild species Oryza minuta (2n = 48, BBCC, Acc No.101141) into O. sativa subsp. indica IR71033-121-15. This introgression line was developed at International Rice Research Institute (IRRI) through embryo rescue as well as three backcrosses using IR31917-45-3-2 as a recurrent parent. These two IR lines resemble each other but differ in several important agronomic traits, which can be attributable to O. minuta introgressions. Out of 530 STS markers tested for introgression analysis, at least 14 introgressed chromosomal segments from O. minuta were detected throughout 12 chromosomes. Most of the introgressed segments were quite small in size, as they were detected by single markers and flanking markers were negative for introgressions. A population from the cross between japonica cultivar Junambyeo and introgressed indica line IR71033-121-15, consisting of 146 plants, was evaluated for ten agronomic traits. Genotyping of F2 lines and phenotyping from both F2 and F3 were considered for QTL analysis. A total of 11 single-locus QTLs (S-QTLs) were identified for ten traits, i.e. days to heading (DTH), panicle number (PN), spikelet fertility (SF), panicle length (PL), spikelet per panicle (SPP), grain length (GL), grain width (GW), grain length to width ratio (GLW) and grain thickness (GT) in both populations. The O. minuta derived alleles of QTLs, spp6, gl3, glw3, glw5 and t12 were detected in both populations indicating robust QTLs for these traits. QTLs from O. minuta introgression could be new sources of natural genetic variation for genetic improvement of rice. |
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| institution | Directory Open Access Journal |
| issn | 1212-1975 1805-9325 |
| language | English |
| last_indexed | 2024-04-10T08:30:35Z |
| publishDate | 2008-09-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Czech Journal of Genetics and Plant Breeding |
| spelling | doaj.art-69ac4d2d5e8241d5b708378f2e397c202023-02-23T03:29:20ZengCzech Academy of Agricultural SciencesCzech Journal of Genetics and Plant Breeding1212-19751805-93252008-09-014439310410.17221/16/2008-CJGPBcjg-200803-0002QTL analysis for yield related traits using populations derived from an indica-japonica hybrid in rice (Oryza sativaL.)Lutfor Rahman0Most Sakina Khanam1Hee-Jong Koh2Deptartment of Plant Science, College of Agriculture and Life Sciences, Seoul National University, Seoul, KoreaDivision of Crop Physiology and Quality Division, Bangladesh Institute of Nuclear Agriculture, Mymensingh, BangladeshDeptartment of Plant Science, College of Agriculture and Life Sciences, Seoul National University, Seoul, KoreaIntrogression has been achieved from a wild species Oryza minuta (2n = 48, BBCC, Acc No.101141) into O. sativa subsp. indica IR71033-121-15. This introgression line was developed at International Rice Research Institute (IRRI) through embryo rescue as well as three backcrosses using IR31917-45-3-2 as a recurrent parent. These two IR lines resemble each other but differ in several important agronomic traits, which can be attributable to O. minuta introgressions. Out of 530 STS markers tested for introgression analysis, at least 14 introgressed chromosomal segments from O. minuta were detected throughout 12 chromosomes. Most of the introgressed segments were quite small in size, as they were detected by single markers and flanking markers were negative for introgressions. A population from the cross between japonica cultivar Junambyeo and introgressed indica line IR71033-121-15, consisting of 146 plants, was evaluated for ten agronomic traits. Genotyping of F2 lines and phenotyping from both F2 and F3 were considered for QTL analysis. A total of 11 single-locus QTLs (S-QTLs) were identified for ten traits, i.e. days to heading (DTH), panicle number (PN), spikelet fertility (SF), panicle length (PL), spikelet per panicle (SPP), grain length (GL), grain width (GW), grain length to width ratio (GLW) and grain thickness (GT) in both populations. The O. minuta derived alleles of QTLs, spp6, gl3, glw3, glw5 and t12 were detected in both populations indicating robust QTLs for these traits. QTLs from O. minuta introgression could be new sources of natural genetic variation for genetic improvement of rice.https://cjgpb.agriculturejournals.cz/artkey/cjg-200803-0002_qtl-analysis-for-yield-related-traits-using-populations-derived-from-an-indica-japonica-hybrid-in-rice-oryza-s.phpricepleiotropic effectalien introgressionsequence tagged site (sts) markersoryza minutaquantitative trait locus (qtl) |
| spellingShingle | Lutfor Rahman Most Sakina Khanam Hee-Jong Koh QTL analysis for yield related traits using populations derived from an indica-japonica hybrid in rice (Oryza sativaL.) Czech Journal of Genetics and Plant Breeding rice pleiotropic effect alien introgression sequence tagged site (sts) markers oryza minuta quantitative trait locus (qtl) |
| title | QTL analysis for yield related traits using populations derived from an indica-japonica hybrid in rice (Oryza sativaL.) |
| title_full | QTL analysis for yield related traits using populations derived from an indica-japonica hybrid in rice (Oryza sativaL.) |
| title_fullStr | QTL analysis for yield related traits using populations derived from an indica-japonica hybrid in rice (Oryza sativaL.) |
| title_full_unstemmed | QTL analysis for yield related traits using populations derived from an indica-japonica hybrid in rice (Oryza sativaL.) |
| title_short | QTL analysis for yield related traits using populations derived from an indica-japonica hybrid in rice (Oryza sativaL.) |
| title_sort | qtl analysis for yield related traits using populations derived from an indica japonica hybrid in rice oryza satival |
| topic | rice pleiotropic effect alien introgression sequence tagged site (sts) markers oryza minuta quantitative trait locus (qtl) |
| url | https://cjgpb.agriculturejournals.cz/artkey/cjg-200803-0002_qtl-analysis-for-yield-related-traits-using-populations-derived-from-an-indica-japonica-hybrid-in-rice-oryza-s.php |
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