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
Doubled haploid (DH) system is an effective tool in improving breeding efficiency and has been widely applied inwheat breeding programs. Wheat x maize hybridization is used for the production of wheat DH because of its efficiency andease of application. We carried out an experiment to investigate genotype effect of wheat (Triticum aestivum) and maize (Zeamays) on efficiency of wheat haploid production. In various wheat x maize crosses, ten wheat and seven maize genotypes weretested. Haploid embryos were rescued and cultured for plant regeneration. Average seed set, embryo formation and haploidregeneration of five wheat varieties in crosses with a pollinator cv. Gangdaok were about 75%, 19% and 8.4%, respectively. Theirhaploid regeneration ranged from 3.7∼9.8% and cv. Jokyoung showed highest regeneration. Average seed set, embryo formationand haploid regeneration of seven maize genotypes in crosses with a parent cv. Jokyoung were about 78%, 18% and 9.6%,respectively. Their haploid regeneration ranged from 7.6∼12.9% and cv. Kwangpyeongok showed highest regeneration followedby cvs. Gangdaok and Gangilok. Analysis of variance for seed set and embryo formation showed highly significant effects ofwheat parents and maize pollinators, whereas their interaction effect was only significant for seed set. The effect of maizegenotypes on these traits was greater than that of wheat genotypes. Consequently, cvs. Kwangpyeongok, Gangdaok and Gangilokwere found to be better pollen donors among the genotypes tested in wheat x maize hybridization for wheat hybrid production.
목차
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참고문헌 (19)
참고문헌 신청
Ahmad J / 2004 / Improvements in wheat x maize crossing system of doubled haploid production in bread wheat / 박사 / University of Agriculture
Almouslem AB / 1998 / Haploid durum wheat production via hybridization with maize / Crop Sci 38 : 1080 ~ 1087
Bitsch C / 1998 / Effect of parental genotypes on haploid embryo and plantlet formation in wheat × maize crosses / Euphytica 103 : 319 ~ 323
Comeau A / 1992 / Media for the in ovulo culture of proembryos of wheat and wheat-derived interspecific hybrids or haploids / Plant Sci 81 : 117 ~ 125
Inagaki M. / 1997 / Technical advances in wheat haploid production using ultra-wide crosses / JIRCAS J 4 : 51 ~ 62
Almouslem AB / 1998 / Haploid durum wheat production via hybridization with maize / Crop Sci 38 : 1080 ~ 1087
Bitsch C / 1998 / Effect of parental genotypes on haploid embryo and plantlet formation in wheat × maize crosses / Euphytica 103 : 319 ~ 323
Comeau A / 1992 / Media for the in ovulo culture of proembryos of wheat and wheat-derived interspecific hybrids or haploids / Plant Sci 81 : 117 ~ 125
Inagaki M. / 1997 / Technical advances in wheat haploid production using ultra-wide crosses / JIRCAS J 4 : 51 ~ 62
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