Characterization of ploidy variants identified in the wild resources of Actinidia arguta relative species to kiwifruit

描述了日本特有的野生A.acutta的倍性变体。观察到从二倍体到八倍体的广泛的倍性变异。确定了变异体的地理分布，显示了东北地区高倍性群体的定位。对倍性变异体的形态、果实组成和生殖特性进行了测定。观察了倍性变异体与猕猴桃（A.deliciosa）的杂交亲和性。杂交苗的性状显示了变异体作为育种材料的潜力。

Ploidy variants of wild A.arguta specifically occurred in Japan, were characterized. A wide range of ploidy variance from diploid to octaploid was observed. Geographic distribution of the variants was determined showing the localization of the higher ploidy population in Tohoku area. Morphology, fruit composition and reproductive character of the ploidy variants were determined. Cross compatibility of the ploidy variants with kiwifruit (A.deliciosa) was observed. The characteristics of the cross seedlings showed the potential of the variants as breeding materials.