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• 영문명: Mapping of QTL for Spike Length in Doubled Haploid Population of Korean Wheats
• 발행기관: 한국육종학회
• 저자명: 강택규(Taek-Gyu Kang) 김경민(Kyung-Min Kim) 강성욱(Seong-Wook Kang) 강천식(Chon-Sik Kang) 전재범(JaeBuhm Chun) 박철수(Chul Soo Park) 조성우(Seong-Woo Cho)
• 간행물 정보: 『한국육종학회지』Vol.52 No.2, 104~114쪽, 전체 11쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2020.06.30

영문 초록

The objective of this study was to identify quantitative trait loci (QTL) of spike length by association analysis with 94 doubledhaploid wheat lines derived from Keumkang and Olgeuru. Days to heading date, culm length, spike length, and kernels per spike were evaluatedin 2017 and 2018 in upland conditions. Culm length and spike length were biased short culm length and spike length (skewness=0.2 and1.5, respectively). Kernel number per spike was biased low kernel number per spike (skewness=0.8). A genetic map was constructed with170 microsatellite marker loci. One QTL was detected for spike length. The QTL on chromosome 4A, qSL-1 was detected by Xwmc283and Xbarc327 explained 44.3% of the phenotypic variation. The QTL was applied to validate the relationship between genotypes of QTLand 29 Korean wheat cultivars grown for nine years under upland conditions. Korean wheat cultivars were classified into 5 types b ased onthe combination of the two SSR markers. In Korean wheat cultivars, genotype b at Xbarc327, which was homozygous to Keumkang, had ashorter spike length (7.48 cm) than genotype c, which was different from the genotypes of Keumkang and Olgeuru, (8.45 cm). The two Koreanwheat cultivars with genotypes ac at Xwmc283 and Xbarc327 had longer spike length (8.45 cm) than genotypes ba and bb (<7.42 cm).

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키워드

Korean wheat doubled haploid spike length QTL