Polyploidy and Acclimatization Rate of Broccoli Plane Derived from Anther Culture

葯培養 由來 녹색꽃양배추(Broccoli)의 幼植物 馴化 및 培數性 調査

  • Published : 1998.09.01

Abstract

This study was conducted to clarify the acclimatization rate and ploidy level of anther culture-derived plants in broccoli. The acclimatization rate from 71.4 to 100% was obtained from 7 varieties in 2 years. It was possible to identify the ploidy of the Plants obtained through anther culture by measuring the number of chloroplast in the guard cell. The average numbers of chloroplasts per guard cell in haploid diploid, and tetraploid were 8.5, 13.5 and 18.5, respectively. The regenerated plants could be classified based on these results into 47.1-51.3% of haploids, 47.9∼51.7%, diploid, and 0.8∼l.2% of tetraploids.

약배양 유래 녹색꽃양배추의 유식물 순화율 및 배수성을 조사하였다. 7가지 공시 품종중 순화율에 있어 Marathon은 80.8∼100%, Landmark는 79.2∼100%, Mariner는 71.4∼79.2%로 나타나 평균 순화율은 83.6%∼86.1% 이였다. 소포자 배에서 생성된 식물체의 배수성은 공변세포내 엽연체수 측정으로도 가능했으며, 또한 배수성의 조기측정을 위해 I-KI용액을 사용하여 엽록체의 즉시염색 관찰이 가능했다. 관찰된 평균 엽녹체수는 반수체가 8.5, 2배체는 13.5, 그리고 4배체는 18.5개로 나타 났으며 이를 기초로 분류한 재분화개체의 배수성은 반수체 47.1∼51.3%, 2배체 47.9∼51.7%, 4배체 0.8∼l.2% 로서 반수체와 2배체가 각각 반씩이고 4배체가 극히 적게 분포하며 인위적인 염색체 배가 없이도 상당수의 자연 배가된 2배체를 얻을 수 있었다.

Keywords

References

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