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鄭元福,朴東洵,姜弼敦 東亞大學校 1986 東亞論叢 Vol.23 No.1
蠶作安定多收性 育成의 重要性에 비추어 有用한 形質의 遺傳關係를 初期에 推定하고 效率的인 選拔을 爲한 基礎資料를 얻고자 形質相互間의 特性을 고려한 2個品種을 二面交雜하여 F??의 主要 形質에 대한 優性程度 및 組合能力 등을 檢定한 結果는 다음과 같다. 1. Vr-Wr graph에서 雌單繭重과 雄單繭重은 超優性으로, 雌繭層重, 雄繭層重, 雌繭層比率 및 雄繭層比率은 各各 不完全優性으로 推定되었다. 2. 各 形質에 대한 分散成分의 推定에서 雌繭層重, 雄繭層重, 雌繭層比率 및 雄繭層比率은 遺傳子의 相加的 效果가 優性效果보다 더 컸고, 雌單繭重과 雄單繭重은 反對의 樣相이었다. 優性程度와 平均優性程度에서도 雌雄單繭重에서 超優性이고, 雌雄繭層重과 繭層比率은 各各 不完全優性이었다. 3. 一般組合能力과 特定組合能力을 檢定한 바, 6個形質 모두 一般組合能力(GCA)이 特定組合能力(SCA)보다 높게 評價되었다. 4. GCA 效果의 경우, 蠶114가 雌單繭重이 6個形質中에서 가장 높았고, 蠶108이 雄單繭重, 雌繭層重, 雄繭層重, 雌繭層比率 및 雄繭層比率에서 各各 높게 評價되었다. SCA 效果는 蠶107×蠶113은 雌繭層比率에서, 蠶107×蠶114는 雄繭層重과 雄繭層比率에서, 蠶108×複形蠶은 雌繭層重에서, 蠶108×中14는 雄單繭重에서, 蠶113×綠東亞는 雌單繭重에서, 蠶114×複形蠶은 雌單繭重, 雄單繭重 및 雄繭層重에서, 中14×綠東亞는 雌繭層重, 雌繭層比率 및 雄繭層比率에서 各各 높게 評價되어 주로 奬勵蠶品種인 蠶108, 蠶114가 關與하는 組合에서 SCA 效果가 큰 傾向이었다. Since the estimates of the genetic relations between characters gave us effective basic informations about the selection of good strains of the silkworm, this experiment was carried out to estimate the degree of dominance and the combining ability for the some main characters of the silkworm such as cocoon weight and cocoon layer ratio and weight, using the 21 combinations of F??'s by diallel corsses of seven strains of the silkworm. As the result of this experiments, some conclusions obtained were as follows. 1. The male and female cocoon weights are inferred over dominance and their cocoon layer weights and ratio partial dominance from Vr-Wr graph. 2. The additive effect of gene on the male and female cocoon layer weights and ratio is higher than the dominance effect, on the contrary, the latter on both the cocoon weights is higher than the former. Also, in the average degree of dominance, both the cocoon weights are over dominance and the male and female cocoon layer ratio and weights are partial dominance. 3. The effect of general combing ability(GCA) on the 6 characters analysed in this experiments is higher than that of specific combining ability(SCA). 4. In the effect of GCA, the male cocoon weight of Jam 114 is the highest of 6 characters, the male and female cocoon layer ratio and weights of Jam 108 and the male cocoon weight of Jam 108 are relatively high. The effect of SCA on the female cocoon layer ratio of Jam 107×Jam 113, the female cocoon layer weight of Jam 108×Bokhyeong Jam, the male cocoon weight of Jam 108×Jung 14, the female cocoon weight of Jam 113×Nog Dong-A, the male and female cocoon weights and male cocoon layer weight of Jam 114×Bokhyeong Jam, and the female cocoon layer weight and the male and female cocoon layer ratio fo Jung 14×Nog Dong-A is estimated high. Generally, the combinations including the recommended strains of the siklworm such as Jam 108 and Jam 114 tend to be high in the effect of SCA.
Production of Colored Cocoons by Feeding Dye-Added Artificial Diet
( Pil Don Kang ),( Mi Ja Kim ),( I Yeon Jung ),( Kee Young Kim ),( Young Soon Kim ),( Gyoo Byung Sung ),( Bong Hee Sohn ) 한국잠사학회 2011 International Journal of Industrial Entomology Vol.22 No.1
In order to produce the colored cocoons we finalized the adequate amount of dyes throughout several trial and error experiments. The proper amount of each dye required for per 100 g of each colored cocoon turned out to be 150 mg of Rhodamine, 1560 mg of Thionin, 170 mg of Neutral red, and 200 mg of N-Blue, respectively. With this amount of dyes silkworms grew without physiological disorders. In order to produce colored cocoons, artificial diet composed mainly of mulberry leaves was fed to silkworms from the beginning of 5th instar, and subsequently fed with dye included diet from 4th day of the 5th instar. This process resultantly produced colored silkworm body from the onset of feeding and subsequently colored cocoons and eggs. Nevertheless, the dye induced color was not inherited to next generation.
Breeding of Two New Silkworm Varieties with Peculiar Laval Mark, Eolrukmal and Hukpyobeom
( Pil Don Kang ),( I Yeon Jung ),( Kee Young Kim ),( Mi Ja Kim ),( Bong Hee Sohn ),( Gwang Gill Lee ) 한국잠사학회 2010 International Journal of Industrial Entomology Vol.20 No.2
The Eolrukmal and Hukpyobeom varieties were bred for special purpose such as experience and education. The Eolrukmal variety was selected and succeeded from the F1 of Huka × Galwon in 2004 summer. It has stripes and brown half-moon body marks. The Hukpyobeom variety was selected and succeeded from the F1 of Remone × Hukho in 2004 summer. It has black body color and bright yellow segments. They are healthy yellow cocoon spining varieties showing over 93% of high practical hatching ratio and 93.1% of emergence ratio. The Eolrukmal moth laid 450 egg/batch and the Hukpyobeom moth laid 440 egg/batch.
Character Analysis of Silkworm Strains Registered as Genetic Stocks in Korea
( Pil Don Kang ),( Kee Young Kim ),( I Yoen Jung ),( Mi Ja Kim ),( Byung Rae Jin ),( Ik Soo Kim ) 한국잠사학회 2009 International Journal of Industrial Entomology Vol.19 No.1
In order for further systematic maintenance of silkworm stocks kept in Korea we analyzed character quality of a diverse array of silkworm strains originated from several sericulture-practicing countries. The analysis of about ten qualitative characters from 67 strains (13 of Japanese strains, 15 of Chinese strains, 14 of European strains, 6 of Korean and Tropical strains, and 19 of unknown origin) revealed a significant difference in the ten different qualitative characters among silkworm strains. In the analysis of quantitative characters, Japanese and European strains were highest in hatchability, the Korean and Tropical strains were highest in pupation rate, and unknown origin and Chinese strains were highest in cocoon yield and number of egg laid. With the connection of molecular genetic analysis the current data may provide the advanced ground for further systematic maintenance of valuable genetic resources of silkworms, although more breeds should be investigated for further complete pictures.
( Pil Don Kang ),( Gyoo Byung Sung ),( Kee Young Kim ),( Hee Sam Lee ),( Mi Ja Kim ),( Sang Duk Ji ),( In Pyo Hong ),( Hae Yong Kweon ),( Kwang Young Park ),( Kwang Gil Lee ),( Bong Hee Sohn ) 한국잠사학회 2011 International Journal of Industrial Entomology Vol.23 No.1
Normally the first generation of hybrid is supplied for farm rearing, precise and labor saving sex discrimination is needed. The new strain Hansaengjam is sex-limited (♀:larval markings, ♂:no-markings) strain which was bred from both sex-limited strain Japanese originated Jam 153 and Chinese originated strain Jam 154. Productivity test of Hansaengjam during 2007 and 2009 showed high healthiness and cocoon yield. The Hansaengjam is evaluated as an excellent strain from healthiness, cocoon yield and other test results.