甘蔗野生种割手密远缘杂交后代品质性状的遗传研究  

Inheritance of Quality Traits of the Distant Crossing between S. officinarum and S. spontaneum

作　　者：吴才文[1] Phillip Jackson 刘家勇[1] 赵培方[1] 赵俊[1] 范源洪[1] 刘新龙[1] 

机构地区：[1]云南省农业科学院甘蔗科学研究所/云南甘蔗遗传改良重点实验室,开远661600 [2]澳大利亚联邦科学院

出　　处：《植物遗传资源学报》2011年第1期59-63,共5页Journal of Plant Genetic Resources

基　　金：澳大利亚国际农业研究中心ACIAR(CSI/200/038);现代农业产业技术建设专项资金(nycytx-024-01-03);农业部"948"项目(2006-G37);国家科技支撑计划项目(2007BA30B01;2007BAD30B02);国家"863"计划(2007AA100701)

摘　　要：利用甘蔗品种Co419与野生种割手密云南75-1-2远缘杂交,ROC25与远缘杂交后代云野02-356进行回交,分别获得F1和BC1群体;利用R软件,分析了2个群体全部真实性后代品质性状的遗传表现。结果表明,杂交后代品质性状广义遗传力高,正态分布特性明显,品质性状间显著正相关;F1含糖量和纤维含量高于商业亲本,但甘蔗蔗糖分、蔗汁糖分、蔗汁锤度和简纯度等性状劣于商业亲本;BC1除含糖量高于双亲外,其他性状介于双亲之间,但主要性状均优于F1,后代性状恢复快。The distant hybridization of commercial cultivar Co419×a wild clone of S.SpontaneumYunnan75-1-2 was fulfilled.Yunye02-356,one clone of F1generation,was backcrossed as male by commercial cultivar ROC25.The seedlings,from the two populations of Co419×Yunnan75-1-2（F1）and Yunye02-356×ROC25（BC1）,were selected for propagation.All clones including F1,BC1and their parents were planted in one trial with random complete block design of three repeats.The inheritance of quality traits of real progenies from the two populations was analysed with R software.The results showed that the broad-sense heritability of quality traits of the two populations is high.All quality traits displayed a obvious normal distribution regularity.All quality traits showed significantly and positively related.Both sugar yield and fibre content are higher in the F1 populations than commercial parent,but other traits including commercial cane sugar,sugar content in cane juice,brix in cane juice and apparent purity of cane juice are all worse in the F1population than in the commercial parent.The performances of quality traits are almost between the two parents except sugar yield higher in the BC1 population,and the main traits are better in BC1 population than in F1 population.

关 键 词：甘蔗 远缘杂交 品质性状 遗传 

分 类 号：S566.1[农业科学—作物学]