摘要
１９８１～１９９３年对刺梨果实皮刺性状的遗传方式进行了研究，根据杂交试验、自交试验及Ｆ１和Ｆ２的表现型分析：有刺型对无刺型为显性，有刺和无刺一对性状，受两对基因互作，即积加作用，二种显性基因同时存在时果实刺硬，单独存在时果实软刺，两对隐性基因存在时果实无刺，刺梨果实的无刺型是有刺型芽变，这种芽变是嵌合体，多数是通过无性繁殖才能遗传，只有ＬⅡ层突变产生的果实无刺型才能通过有性繁殖遗传。
The hereditary mode of the character of fruit prickle has been studied from 1981 to 1993. Based on the analysis on the cross and selfing and phenotype of F1 and F2,the character with prickles is dominant to that non-prickles.Both prickles and non-prickles are controlled by additive effect of two pairs of gene Two dominant genes make the fruit prickles hard,One dominant gene make fruit prickles soft.Two pairs of recessive genes make fruit smooth,The character of non-prickles come from bud variation of character with prickles.The character of bud variation is a chimaera which is kept by cloning.The sport of character of non-prickles only from LⅡ layer are inheritable in sexual propagation.
出处
《贵州农业科学》
CAS
1994年第4期9-11,共3页
Guizhou Agricultural Sciences
关键词
刺梨
皮刺性状
遗传
Rosa roxburghit
character of prickle
heredity
