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논문 기본 정보

자료유형
학술저널
저자정보
조수헌 (한국인삼연초연구원)
저널정보
한국연초학회 한국연초학회지 한국연초학회지 제22권 제1호
발행연도
2000.1
수록면
71 - 75 (5page)

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The genetic makeup could be the most important among many factors affecting yield and quality of tobacco(Nicotiana tabacum L.). The mammoth gene found in N. tabacum is associated with greater leaf number and poor leaf quality. This study was carried out to obtain the basic information about the inheritance of mammoth gene and white flower color. Two flue-cured breeding lines, KF 9373-2 and KF 8832-85, F$_1$, F$_2$, two parents backcrossed with F$_1$, and F$_3$ lines derived from cross of above two lines were investigated for flowering type(mammoth gene) and flower color. All plants of F$_1$ population revealed normal flowering type and pink flower color. The progeny of F$_2$ generation was segregated into the phenotypic ratio of 9 : 3 : 3 : 1 with normal flowering type and pink flower color, normal and white, non flowering type(NF) and pink, and NF and white, respectively. Among the progenies of back-crossing populations, the flowering type showed a segregation ratio of 1 : 1 as normal and NF in BP$_1$ and flower color did also 1 : 1 as pink and white in BP$_2$. All lines have the mammoth gene in F$_3$. that were selected in F$_2$ progeny as non flowering. But 9 lines among 14 were segregated with 3 : 1 as pink and white flower in F$_3$. which were selected in F$_2$ as pink flower color. These results indicated that the characters of mammoth gene and white flower were controlled by a pair of recessive genes, respectively.

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