Korean Journal of Breeding Science (한국육종학회지)

The Korean Society of Breeding Science (한국육종학회)
권호 표지

Inheritance of Several Qualitative Characters in Cyclamen persicum

시클라멘의 몇 가지 형질의 유전

  • Received : 2010.06.25
  • Published : 2010.06.30
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Abstract

This experiment was conducted to characterize the inheritance of petal color, flower-eye color, flower shape, leaf variegation pattern, and leaf-end shape in Cyclamen persicum. The segregation of $F_2$ and backcross populations from crosses between inbred lines was tested for Mendelian inheritance mode. From four different combinations of crosses, it was found that the petal color was controlled by a single incomplete dominant gene. The other characters, flower-eye color, flower shape, leaf variegation pattern and leaf-end shape were confirmed to be controlled by single complete dominant genes.

시클라멘의 꽃 및 꽃눈의 색, 잎의 모양과 무늬 등의 질적 형질에 대한 유전 분석을 위하여 이들의 특성이 다른 계통을 교잡한 후, $F_1$, $F_2$ 및 여교잡 세대에서 분리비를 조사하였다. 화색은 $F_1$이 양친의 중간색을 나타냈고, $F_2$는 자방친 화색: 중간 색($F_1$과 동일): 화분친 화색이 1: 2 : 1로 분리되어 한 쌍의 대립유전자가 불완전우성으로 유전하는 것으로 나타났다. 꽃눈 색은 흰색 ${\times}$ 빨간색 계통의 조합에서 $F_1$이 빨간색으로 나타났고, $F_2$에서 빨간색 3: 흰색 1로 분리되어 한 쌍의 대립유전자가 우성으로 작용하는 것으로 밝혀졌다. 모인 꽃잎 형태는 흐트러진 꽃잎 형태에 대하여 완전우성으로 유전하는 것으로 나타났다. 잎 형질에 있어서는 넓은 은색 무늬 잎이 선형 무늬 잎에 대하여, 그리고 피침형 잎 끝이 타원형 잎 끝에 대하여 각각 우성으로 작용하는 한 쌍의 대립유전자가 관여하는 것으로 나타났다. 이와 같이 시클라멘의 질적형질의 발현에는 한 쌍의 대립 유전자가 작용하며 꽃의 색은 불완전우성으로, 꽃눈의 색, 잎의 형태 및 무늬는 완전우성으로 유전되는 것으로 밝혀졌다.

Keywords

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