根据ADAA遗传模型分析了7个转基因抗虫棉亲本、两个非转基因抗虫亲本和36个半双列杂交F1的纤维品质性状的两年资料，估算各项遗传方差和成对性状间的遗传相关性。结果表明，转基因抗虫棉纤维品质的5个性状受加性、显性和上位性的共同控制，其中麦克隆值、2.5%纤维长度和纤维比强度以基因显性效应为主，麦克隆值和纤维整齐度以上位性效应为主。除纤维比强度外，其余4个纤维品质性状都受到环境互作效应的影响，且影响较大。遗传相关分析表明，纤维比强度与2.5%纤维长度的基因型相关和表型值相关达极显著水平，其中加性相关未达显著水平，显性相关达极显著水平。比强度与麦克隆值的基因加性相关也达极显著水平，但表型相关未达显著水平。利用亲本和F1的资料预测了F2的基因型值和杂种优势。结果表明，F2代的麦克隆值、伸长率、2.5%纤维长度、整齐度、纤维比强度的中亲优势分别为1.0%, 8.5%, 0.8%, 0和2.9%, 无超亲优势。
Abstract
Nine parents which seven of them were transgenic insect resistant cotton cultivars with Bt developed in China and USA, and their 36 F1 combinations were analyzed for five traits of fiber quality in two years by a genetic model of additive-dominance with interaction effects, and genetic variance components and correlations were estimated as well. The results showed that the five characters related fiber quality were controlled by additive effects, dominant effects and additive × additive effects. The main effects in micronaire, 2.5% staple strength were dominant effects, while elongation and uniformity were additive × additive effects. There were some interaction effects with large values between genotypes and environments for all five fiber traits except for fiber strength. The genotype and phenotype correlation coefficient between fiber strength and 2.5% staple length were significant, in which the dominant correlation were high, but there were no additive correlation between them. In the meanwhile, the additive genotype correlation between fiber strength and micronaire were significant, and their phenotype correlation was undetected. The F2 genotypic value and their heterosis were analyzed and forecasted from the data of parents and their F1. The result indicated that the heterosis in F2 over mid-parent were 1.0%, -8.5%,-0.8%, 0,-2.9% in average for micronaire, elongation, 2.5% staple length, uniformity and fiber strength, respectively. There was no heterosis over the better parent.
关键词
转基因抗虫棉 /
纤维品质 /
杂种优势 /
遗传率 /
遗传相关
{{custom_keyword}} /
Keywords
transgenic insect resistant cotton /
fiber quality /
heterosis /
heritability /
genetic correlation
{{custom_keyword}} /
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
[1] YUAN You-lu, Zhang Tian-zhen, Guo Wang-zhen, et al. Diallel analysis of superior fiber quality properties in selected upland cottons
[J］. Acta Genetica Sinica, 2005, 32(1): 79-85.
[2］ 曹新川, 康志钰. 陆地棉纤维品质性状遗传效应的分析
[J］. 西北农业学报, 2006, 15(4): 203-205, 216. CAO Xin-chuan, Kang Zhi-yu. Genetic effect analysis of quality fiber properties in upland cotton
[J］. Acta Agriculturae Boreali-Occidentalis Sinica, 2006, 15(4): 203-205, 216.
[3］ 聂以春, 周肖荣, 张献龙. 转基因抗虫棉的产量、品质及抗虫性比较研究
[J］. 植物遗传资源科学, 2002, 3(4): 8-12, 35. NIE Yi-chun, Zhou Xiao-rong, Zhang Xian-long. Comparison on yield, pest-resistance and fiber quality of transgenic pest-resistant cotton
[J］. Journal of Plant Genetic Resources, 2002, 3(4): 8-12, 35.
[4］ 刘建平, 梅拥军, 张利莉, 等. 零式果枝海岛棉铃部性状和纤维品质的遗传及相关分析
[J］. 作物学报, 2005, 31(8): 1069-1073. LIU Jian-ping, Mei Yong-Jun, Zhang Li-li, et al. Analyses of heredity and correlation between boll traits and fiber quality traits in "0" plant type upland cotton
[J］. Acta Agronomica Sinica, 2005, 31(8): 1069-1073.
[5］ 张文英, 梅拥军. 陆地棉铃形和纤维品质的遗传和相关研究
[J］. 作物学报, 2004, 30(8): 816-820. ZHANG Wen-ying, Mei Yong-Jun. Analysis of genetic correlation between boll shape traits and fiber quality traits in upland cotton
[J］. Acta Agronomica Sinica, 2004, 30(8): 816-820.
[6］ 宋美珍, 喻树迅, 范术丽, 等. 短季棉主要农艺性状的遗传分析
[J］. 棉花学报, 2005, 17(2): 94-98. SONG Mei-zhen, Yu Shu-xun, Fan Shu-li, et al. Genetic analysis of main agronomic traits in short season upland cotton(Gossypium hirsutum L.)
[J］. Cotton Science, 2005, 17(2): 94-98.
[7］ 袁有禄, 张天真, 郭旺珍, 等. 棉花纤维品质性状的遗传稳定性研究
[J］. 棉花学报, 2002, 14(2): 67-70. YUAN You-lu, Zhang Tian-zhen, Guo Wang-zhen, et al. Genetic stability of fiber qualities in upland cotton
[J］. Cotton Science, 2002, 14(2): 67-70.
[8］ XU Zhi-chen, Zhu Jun. An approach for predicting heterosis based on an additive, dominance and additive×additive model with environment interaction
[J］. Heredity, 1999, 82: 510-517.
[9］ ZHU Jun. Mixed model approaches for estimating genetic variances and covariances
[J］. Journal of Biomathematics, 1992, 7(1): 1-11.
[10］ 吴征彬, 陈 鹏, 杨业华, 等. 转基因抗虫棉对棉花纤维品质的影响
[J］. 农业生物技术学报, 2004, 12(5): 509-514. WU Zheng-bin, Chen Peng, Yang Ye-hua, et al. Effects of cotton transgenic insect resistance on the fiber quality
[J］. Journal of Agricultural Biotechnology, 2004, 12 (5): 509-514.
{{custom_fnGroup.title_cn}}
脚注
{{custom_fn.content}}
基金
国家973计划项目（2004CB117305）和国家自然科学基金（30471108、30671325）
{{custom_fund}}
PDF(4563 KB)
