학술논문
Identification of QTLs for Grain Quality on a RIL Population Derived from a Cross between Japonica Rices
이용수 2
- 영문명
- 발행기관
- 한국육종학회
- 저자명
- Jung Pil Suh Young Chan Cho Soo Jin Kwon Im Soo Choi Ha Chul Hong Yeon Gyu Kim Sang Nag Ahn Hung Goo Hwang
- 간행물 정보
- 『한국육종학회지』Vol.38 No.2, 105~112쪽, 전체 8쪽
- 주제분류
- 농수해양 > 기타농수해양
- 파일형태
- 발행일자
- 2006.04.30
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국문 초록
영문 초록
A recombinant inbred lines (RILs) consisting of 231 lines, derived from a japonica (Suweon365) and a japonica (Chucheongbyeo) rice, was used to investigate the genetic factors affecting cooking and eating quality of rice. Alkali digestion value (ADV), amylose content (AMY), protein content (PRO) and glossiness of cooked rice (GCR) were measured by quantitative trait loci (QTLs) analysis over 2 years. A total of 10 QTLs for the four traits were detected, of which two for ADV, two for AMY, two for PRO and four for GCR. QTL-by-environment interactions were observed by comparing QTL mapping of the same population grown in 2 years. For each trait, one to two QTL were found, which were repeatedly detected in 2 years at five loci on chromosomes 1, 6, 7 and 8. Two QTLs for GCR on chromosomes 7 and 8 were closely linked with QTLs for PRO. To confirm the QTLs for GCR, the RILs harboring desirable QTL alleles of Chucheongbyeo were successively backcrossed with Suweon365 by marker assisted selection (MAS). In BC3F2 generation, the lines homozygous for Chucheongbyeo allele had the allele effect of 2.35 for qGCR-7, 2.25 for qGCR-8, and 1.25 for qGCR-11. These results would be useful in MAS breeding for the improvement of rice eating quality and pyramiding of desirable QTLs.
목차
Abstract
INTRODUCTION
MATERIALS AND METHODS
RESULTS AND DICUSSION
LITERATURES CITED
키워드
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