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| Inheritance and Availability of High Grain Number Per Spike in Two Wheat Germplasm Lines |
| CHEN Dan, ZHANG Jin-peng, WANG Jian-sheng, YANG Xin-ming, LIU Wei-hua, GAO Ai-nong, LI |
1.National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R.China
2.Hybrid Rapeseed Research Center of Shaanxi Province/Shaanxi Rapeseed Branch of National Oil Crops Genetic Improvement Center,Dali 715105, P.R.China |
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摘要 Grain number per spike (GNPS) is a major factor in wheat yield breeding. The development of high GNPS germplasm is widely emphasized in wheat-yield breeding. This paper reported two high GNPS wheat germplasm lines, Pubing 3228 and Pubing 3504, which had a stable and wide adaptability to different ecological regions. By exploring a nested cross design with reciprocals using Pubing 3228 or Pubing 3504 as a common parent and investigating the GNPS phenotypes of F1 hybrids in 2007-2008 and F2 populations in 2008-2009 of different cross combinations, the narrow-sense GNPS heritability was up to 49.58 and 52.23%, respectively. Genetic model analysis predictions suggested that GNPS in Pubing 3228 and Pubing 3504 was mainly controlled by additive genetic effects. Correlation analysis results between GNPS and 1 000- kernel weight (TKW) of F2 populations showed that TKW was not influenced with the increase of GNPS. The good coordination among three yield components of spike number per plant (SNPP), GNPS, and TKW in the F2 segregating population implied that selection of good candidate individuals in breeding programs would be relatively straightforward. Overall, our results indicated that Pubing 3228 and Pubing 3504 are two potential germplasm lines for yield improvement of GNPS in pedigree selection of wheat breeding.
Abstract Grain number per spike (GNPS) is a major factor in wheat yield breeding. The development of high GNPS germplasm is widely emphasized in wheat-yield breeding. This paper reported two high GNPS wheat germplasm lines, Pubing 3228 and Pubing 3504, which had a stable and wide adaptability to different ecological regions. By exploring a nested cross design with reciprocals using Pubing 3228 or Pubing 3504 as a common parent and investigating the GNPS phenotypes of F1 hybrids in 2007-2008 and F2 populations in 2008-2009 of different cross combinations, the narrow-sense GNPS heritability was up to 49.58 and 52.23%, respectively. Genetic model analysis predictions suggested that GNPS in Pubing 3228 and Pubing 3504 was mainly controlled by additive genetic effects. Correlation analysis results between GNPS and 1 000- kernel weight (TKW) of F2 populations showed that TKW was not influenced with the increase of GNPS. The good coordination among three yield components of spike number per plant (SNPP), GNPS, and TKW in the F2 segregating population implied that selection of good candidate individuals in breeding programs would be relatively straightforward. Overall, our results indicated that Pubing 3228 and Pubing 3504 are two potential germplasm lines for yield improvement of GNPS in pedigree selection of wheat breeding.
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Received: 12 May 2011
Accepted:
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| Fund: This work was supported by the National Basic Research Program of China (2011CB100104), the National Natural Science Foundation of China (31071416), and the National High Technology R&D Program of China (2006AA10Z174). |
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Corresponding Authors:
Correspondance LI Li-hui, Tel: +86-10-62186670, Fax: +86-10-62189650, E-mail: lilihui@caas.net.cn
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| About author: CHEN Dan, E-mail: xiaoyezi09@yahoo.com.cn; ZHANG Jin-peng, E-mail: zhangjp@caas.net.cn |
Cite this article:
CHEN Dan, ZHANG Jin-peng, WANG Jian-sheng, YANG Xin-ming, LIU Wei-hua, GAO Ai-nong, LI .
2012.
Inheritance and Availability of High Grain Number Per Spike in Two Wheat Germplasm Lines. Journal of Integrative Agriculture, 12(9): 1409-1416.
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| [1]Chen G, Zhu J. 2003. QGAStation 1.0. Software for the Classical Quantitative Genetics. Institute of Bioinformatics, Zhejiang University, China. (in Chinese) [2]Dong Y S. 1996. The wheat genetic resources. In: Jin S B, ed., The Study of Wheat in China. Chinese Agriculture Press, Beijing. pp. 290-298. (in Chinese) [3]Feldman M W, Lewontin R C. 1975. The heritability hangup. Science, 190, 1163-1168. [4]He Z H, Rajaram S, Xin Z Y, Huang G Z. 2001. A History of Wheat Breeding in China. CIMMYT, Mexico, D.F. Ji W Q, Wang C Y, Wang Q Y, Xue X Z, Ren Z L, Zhang H, Cai D M, Wang Y J. 2003. Advancement in the innovation of wheat germplasm with large-spike. Acta Tritical Crops, 23, 126-130. [5]Ketata H, Edwards L H, Smith E L. 1976. Inheritance of eight agronomic characters in a winter wheat cross. Crop Science, 16, 19-22. [6]Liu S H, Liu W B, Chen B K, Guo Y Z, Ke B N, Wu J C, Wu G X. 1999. Introduction of large ear wheat variety Xianyang 84(Jia)79-3-1. Chinese Journal of Applied Ecology, 10, 201-205. (in Chinese) [7]Luo H X, Zhang X L, Ma W M. 1993. The selection of big spike wheat materials. Journal of Triticeae Crops, 4, 34-36. [8]Sidwell R J, SmithE L, McNew R W. 1976. Inheritance and interrelationships of grain yield and selected yieldrelated traits in a hard red winter wheat cross. Crop Science, 16, 650-654. [9]Wang J, Wang H, Liu W H, Wu J, Li L H. 2009. The large kernel number in the novel wheat-Agropyron germplasm 3228 and its inheritance analysis. Scientia Agricultura Sinica, 42, 1889-1895. (in Chinese) [10]Wang J S, Liu W H, Wang H, Li L H, Wu J, Yang X M, Li X Q, Gao A N. 2011. QTL mapping of yield-related traits in the wheat germplasm 3228. Euphytica, 177, 277-292. [11]Yen C, Zheng Y L, Yang J L. 1995. An ideotype for high yield breeding in theory and practice. In: Li Z S, Xin Z Y, eds., Proceedings of 8th International Wheat Genetic Symposium. China Agricultural Scientech Press, Beijing, China. pp. 1113-1117. [12]Zhang J P, Liu W H, Yang X M, Gao A N, Li X Q, Wu X Y, Li L H. 2011. Isolation and characterization of two putative cytokinin oxidase genes related to grain number per spike phenotype in wheat. Molecular Biology Reports, 38, 2337-2347. [13]Zhang M Y, Liu Y Y, Yang L R, Gu A X, Wang Z X, Haireguli, Yang S J. 2000. Study on agronomic character and storage protein of large spike lines of wheat transformed with Leymus racemosus total DNA. Journal of Triticeae Crops, 20, 6-10. (in Chinese) [14]Zhang W T, Chen X H, Zhao J X, Wu J, Liu S H, Du W L, Liu F J. 2011. Breeding and cytogenetic identification of a larger-spike and fertile florets germplasm. Acta Botanica Boreali-Occidentalia Sinica, 31, 451-455. (in Chinese) [15]Zhu J. 1993. Methods of predicting genotype value and heterosis for offspring of hybrids. Journal of Biomathematics, 8, 32-44. [16]Zhu J, Weir B S. 1996. Mixed model approaches for diallel analysis based on a bio-model. Genetics Research, 68, 233-240. [17]Zhuang Q S. 2003. Chinese Wheat Improvement and Pedigree Analysis. Chinese Agriculture Press, Beijing, China. pp. 497-506. (in Chinese) |
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