지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
Rice production is largely affected by various environmental conditions such as cold, heat and flooding. Here, to identify cold tolerant QTLs at seedling stage in rice, we generated RIL population derived from a cross between Hanareum 2 and Unkwang which are a highly cold sensitive and cold tolerant, respectively. We observed cold phenotype of this population in the growth chamber conditions and natural field conditions. For observation of cold tolerant phenotype of RIL population in the growth chamber, we treated cold stress (5~13℃) for 14 days and recovery for 4 days. When we examined the phenotype of RIL in the field conditions, temperature range in the field conditions was about 6 to 25℃ in 2015~2016. We named QTLs as Seedling Cold Tolerant (SCT) in growth chamber and Cold induced Yellowing Tolerant (CYT) in the field, respectively. Three QTLs for SCT and 5 QTLs for CYT were detected on chromosome 1, 6, 7, 8, 10, 11 and 12. Among these QTLs, qSCT12 on chromosome 12 showed 26.3 LOD score with 25.5% of phenotypic variation. When qSCT11.1 and qSCT12 were combined, cold tolerant was most strongest in our experimental conditions. qCYT10 on chromosome 10 was identified in field experiment on both 2015 and 2016. These results may provide useful information for a marker-assisted breeding program to improve cold tolerance in rice.
목차
등록된 정보가 없습니다.
참고문헌 (25)
참고문헌 신청
Andaya V / 2003 / Mapping of QTLs associated with cold tolerance during the vegetative stage in rice / J Exp Bot 54 : 2579 ~ 2585
Andaya VC / 2006 / Fine mapping of the qCTS12locus, a major QTL for seedling cold tolerance in rice / Theor Appl Genet 113 : 467 ~ 475
Andaya VC / 2007 / Fine mapping of the qCTS4locus associated with seedling cold tolerance in rice(Oryza sativa L. ) / Mol Breed 20 : 349 ~ 358
Churchill GA / 1994 / Empirical threshold values for quantitative trait mapping / Genetics 138 : 963 ~ 971
Endo T / 2016 / Detection of QTLs for cold tolerance of rice cultivar 'Kuchum' and effect of QTL pyramiding / Theor Appl Genet 129 : 631 ~ 640
Andaya VC / 2006 / Fine mapping of the qCTS12locus, a major QTL for seedling cold tolerance in rice / Theor Appl Genet 113 : 467 ~ 475
Andaya VC / 2007 / Fine mapping of the qCTS4locus associated with seedling cold tolerance in rice(Oryza sativa L. ) / Mol Breed 20 : 349 ~ 358
Churchill GA / 1994 / Empirical threshold values for quantitative trait mapping / Genetics 138 : 963 ~ 971
Endo T / 2016 / Detection of QTLs for cold tolerance of rice cultivar 'Kuchum' and effect of QTL pyramiding / Theor Appl Genet 129 : 631 ~ 640
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