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RISS 인기검색어
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- 저자 : 柳秀徹 (검색결과 2 건)
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二面交雜에 의한 家蠶 F_1世代의 몇 가지 量的 形質에 關한 遺傳 分析
鄭元福,張權烈,韓鏡秀,金鎭馨,柳甲道,鄭鎬永,柳秀徹 한국잠사학회 1986 한국잠사곤충학회지 Vol.28 No.1
A set of 21 crosses of Fl generation by diallel crosses from seven parent silkworm, Bombyx mori L. were used as materials to estimate genetic parameters such as gene action and combining ability. Experiments were conducted in 1985, and three characters, which are weight of cocoon, weight of cocoon layer and ratio of cocoon layer, were observed. The data were analyzed for each character by Jinks', Hayman's and Griffing's methods. The result obtained are summarized as folllows: 1. In Vr-Wr graphical analyses, weight of cocoon was found to be inherited in over dominance, and weight of cocoon layer and ratio of cocoon layer were observed as partial dominance. 2. Estimate of additive component of variance(D) was greater than those of dominance component of variance(H) for weight of cocoon layer and ratio of cocoon layer, and positive values of F were observed for all characters. 3. Mean squares of general combining ability were higher than those of specific combining ability. 4. Variety Jam 107 was expressed as the highest GCA effects for three characters, and high SCA effects for all characters were observed in combinations of Jam 113 X Jung 14 and Jam 107 X jung 14.
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家蠶 F_1世代에 있어서 몇 가지 量的 形質에 대한 遺傳力 및 遺傳相關의 推定
鄭元福,張權烈,韓鏡秀,金鎭馨,柳甲道,鄭鎬永,柳秀徹 한국잠사학회 1986 한국잠사곤충학회지 Vol.28 No.2
Since the estimate of the genetic relations between characters gave us effective basic informations about the selection of good strains of silkworm, the experiment was carried out to estimate the heritability and the genotypic correlation, etc. using the 21 combinations F1's by diallel crosses of seven strains of the silkworm. As the result of this experiment some conclusions obtained were as follows; 1. The genotypic correlation is estimated highly positive in the heritability for all the 9 chcracters. 2. The correlations between all the characters are positive and the genotypic correlation is generally higher than the phenotypic one. 3. Since all the correlations between the bave length and other characters are highly positive, it can be considered that the effects of the other characters on the bave length are very important.
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