”Not Balance Hybrid” Analysis for the Hybrid and Backcross Progenies of S.Officinarum L.and Erianthus Arundinaceus
The cytogenetic studies on the hybrid and backcross progenies of S.officinarum L.and Erianthus Arundinaceus showed that the somatic chromosomes number of Erianthus Hainan 92-105 and Hainan92-77 were 2n =60 =60sm,belonging to 1A type.YC 01-21 was 2n =104 =100m +4sm,belonging to 2C type.The other six tested clones belonging to 2B type of chromosome.The progeny YC96-66 and YC96-40 originated from Badila (female parent,2n =80 =70m + 10sm) with Erianthus (Hainan92-105 and Hainan92-77 as male parent) were 2n =70 =68m + 2sm,following the crossing law of n + n;The crossing between YC96-66 (female parent) and CP84-1198 (male parent,2n =120 =114m + 6sm) also followed the same genetic law and the somatic chromosome number of their progeny,YC01-3,was 2n =105 =95m + 10sm.While chromosome genetic was different in the crossing between YC96-40 (female parent) and CP84-1198 (male parent,2n =120 =114m +6sm).YC01-21 and YC 01-36 were the progenies of this cross.YC 01-21 was 2n =104 =100m + 4sm,followed the same genetic law of n + n.YC 01-36 was 132,was generated by 2n + n.It is suggested that the generation of chromosome was very complex in BC1.The difference between clones in chromosome number was up to 28.Beside n + n,the generation of chromosome may be 2n + n..
Sugarcane Erianthus Intergeneric hybrids Cytogenic analysis Not balance hybrid
ZHANG Mu-qing DENG Zu-hu LIN Wei-le LIN Yin-quan FU Cheng ZHANG Chui-ming LI Yu-chang LAI Li-ping
Key Lab of Eco-Physiology and Genetic Improvement for Sugarcane,Ministry of Agruculture,Fuzhou 35000 Guangzhou Sugarcane and Canesugar Research Institute,Guagzhou 510642 China
国内会议
山东寿光
英文
15-25
2012-04-23（万方平台首次上网日期，不代表论文的发表时间）