关键词:玉米; 染色体片段代换系; 产量; 杂种优势; 数量性状位点 Identification of Heterotic Loci for Yield and Ear Traits Using CSSL Test Population in Maize PENG Qian**, XUE Ya-Dong**, ZHANG Xiang-Ge, LI Hui-Min, SUN Gao-Yang, LI Wei-Hua, XIE Hui-Ling, TANG Ji-Hua* Key Laboratory of Wheat and Maize Crops Science / Collaborative Innovation Center of Henan Grain Crops / College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China Fund:This study was supported by the National Natural Science Foundation of China AbstractHeterosis plays an important role in enhancing crop yield and quality. Dissecting the genetic basis of heterosis can promote hybrid maize selection, however it is unclear up to now. In this study, a set of chromosome segment substitution lines (CSSLs) population, which was constructed using the inbred line lx9801 as the receptor parent and the inbred line Chang 7-2 as the donor parent, was crossed with the inbred line T7296 to construct the corresponding test population. The test population was used to identify the heterotic loci (HL) for grain yield and ear traits in maize, which showed significant difference in heterosis between the corresponding chromosomal region of the inbred line Chang 7-2 and lx9801 as well as the test inbred line T7296. A total of 64 HL were identified for gain yield and ear traits, and among them 23 HL were identified at the two environments simultaneously, including 4 HL for ear length, 4 HL for ear width, 4 HL for row number, 7 HL for kernels per row, and 4 HL for grain yield. Additionally, the HL for both grain yield and its components simultaneously were found on many chromosomal regions. This study could offer a basic material for thoroughly dissecting the genetic basis of heterosis for grain yield and its components in maize.
Keyword:Maize; Chromosome segment substitution lines; Grain yield; Heterosis; Quantitative trait loci Show Figures Show Figures
表2 CSSLs× T7296测交群体产量及穗部性状间的表型相关系数 Table 2 Phenotypic correlation coefficients between grain yield and ear traits of the CSSLs× T7296 population in two environments
性状 Trait
穗长 Ear length
穗粗 Ear width
穗行数 Row number
行粒数 Kernels per row
产量 Grain yield
穗长 Ear length
0.17* *
-0.17*
0.31* *
0.25* *
穗粗 Ear width
0.39* *
0.43* *
0.29* *
0.45* *
穗行数 Row number
0.09
0.39* *
-0.03
0.25* *
行粒数 Kernels per row
0.63* *
0.27* *
0.03
0.56* *
产量 Grain yield
0.54* *
0.67* *
0.32* *
0.49* *
Correlation coefficients between grain yield and ear traits in Xunxian and Changge are listed above and below the diagonal, respectively. * , * * Significance at P < 0.05 and P < 0.01, respectively. 长葛点和浚县点的产量与穗部性状的相关系数分别列于表格对角线的上部和下部。* , * * 分别表示0.05和0.01显著水平。
表2 CSSLs× T7296测交群体产量及穗部性状间的表型相关系数 Table 2 Phenotypic correlation coefficients between grain yield and ear traits of the CSSLs× T7296 population in two environments
Shull GH. The composition of a field of maize. , 1908, 4: 296-301[本文引用:1]
[2]
Bruce AB. The Mendelian theory of heredity and the augmentation of vigor. , 1910, 32: 627-628[本文引用:1]
[3]
Jones DF. Dominance of linked factors as a means of accounting for heterosis. Proc Natl Acad Sci USA, 1917, 3: 310-312[本文引用:1]
[4]
East EM. Heterosis. , 1936, 21: 375-397[本文引用:1]
[5]
Yu SB, Li JX, Xu CG, Yan YF, Gao YJ. Importance of epistasis as the genetic basis of the heterosis in an elite rice hybrid. Proc Natl Acad Sci USA, 1997, 94: 9226-9231[本文引用:1]
[6]
Song RT, MessingJ. Gene expression of a gene family in maize based on noncollinear haplotypes. Proc Natl Acad Sci USA, 2003, 100: 9055-9060[本文引用:1]
[7]
HoeckerN, KellerB, MuthreichN, CholletD, DescombesP, Piepho HP, HochholdingerF. Comparison of maize (Zea mays L. ) F1-hybrid and parental inbred line primary root transcription suggests organ-specific patterns of nonadditive gene expression and conserved expression trends. Genetics, 2008, 179: 1275-1283[本文引用:1]
[8]
Fu ZY, Jin XN, DingD, Li YL, Fu ZJ, Tang JH. Proteomic analysis of heterosis during maize seed germination. Proteomics, 2011, 11: 1462-1472[本文引用:1]
[9]
DingD, Wang YJ, Han MS, Fu ZY, Li WH, Liu ZH, Hu YM, Tang JH. MicroRNA transcriptomic analysis of heterosis during maize seed germination. PLoS One, 2012, 7(6): e39578[本文引用:1]
严建兵, 汤华, 黄益勤, 石永刚, 李建生, 郑用琏. 不同发育时期玉米株高QTL的动态分析. 科学通报, 2003, 48: 1959-1964Yan JB, TangH, Huang YQ, Si YG, Li JS, Zheng YL. Dynamic QTL analysis for plant height in different developing stages in maize. Chin Sci Bull, 2003, 48: 1959-1964 (in Chinese with English abstract)[本文引用:2]
[12]
Li ZK, Luo LJ, Mei HW, Wang DL, Shu QY, TabienR, Zhong DB, Ying CS, Stansel JW, Khush GS, Paterson AH. Overdominance epistatic loci are the primary genetic basis of inbreeding depression and heterosis in rice: I. Biomass and grain yield. , 2001, 158: 1737-1753[本文引用:2]
[13]
KustererB, MuminovicJ, Utz HF, Piepho HP, BarthS, HeckenbergerM, Meyer RC, AltmannT, Melchinger AE. Analysis of a triple testcross design with recombinant inbred lines reveals a significant role of epistasis in heterosis for biomass-related traits in Arabidopsis. Genetics, 2007, 175: 2009-2017[本文引用:1]
[14]
KustererB, Piepho HP, Utz HF, MuminovicJ, Meyer RC, AltmannT, Melchinger AE. Heterosis for biomass related traits in Arabidopsis investigated by a novel QTL analysis of the triple testcross design with recombinant inbred lines. Genetics, 2007, 177: 1839-1850[本文引用:1]
[15]
HuaJ, XingY, WuW, XuC, SunX, Yu SB, Zhang QF. Single-locus heterotic effects and dominance by dominance interactions can adequately explain the genetic basis of heterosis in an elite rice hybrid. Proc Natl Acad Sci USA, 2003, 100: 2574-2579[本文引用:3]
[16]
Xiao JH, Li JM, Yuan LP, Tanksley SD. Dominance is the major genetic basis of the heterosis in rice as revealed by QTL analysis using molecular markers. , 1995, 140: 745-754[本文引用:1]
[17]
LuH, Romero-SeversonJ, BernarboR. Genetic basis of heterosis explored by simple sequence repeat markers in a rand om-mated maize population. Theor Appl Genet, 2003, 107: 494-502[本文引用:1]
[18]
SemelY, NissenbaumJ, MendaN, ZinderM, KriegerU, IssmanN, PlebanT, LippmanZ, GurA, ZamirD. Overdominant quantitative trait loci for yield and fitness in tomato. Proc Natl Acad Sci USA, 2006, 103: 12981-12986[本文引用:1]
[19]
KriegerU, Lippman ZB, ZamirD. The flowering gene single flower truss drives heterosis for yield in tomato. Nat Genet, 2010, 42: 459-463[本文引用:1]
[20]
Wang ZQ, Yu CY, LiuX, Liu SJ, Yin CB, Liu LL, Lei JG, JiangL, YangC, Chen LM, Zhai HQ, Wan JM. Identification of indica rice chromosome segments for the improvement of japonica inbreds and hybrids. Theor Appl Genet, 2012, 124: 1351-1364[本文引用:1]
[21]
Meyer RC, KustererB, LisecJ, SteinfathM, BecherM, ScharrH, Melchinger AE, SelbigJ, SchurrU, WillmitzerL, AltmannT. QTL analysis of early stage heterosis for biomass in Arabidopsis. Theor Appl Genet, 2010, 120: 227-237[本文引用:1]
[22]
GuoX, GuoY, MaJ, WangF, SunM, Gui LJ, Zhou JJ, Song XL, Sun XZ, Zhang TZ. Mapping heterotic loci for yield and agronomic traits using chromosome segment introgression lines in cotton. J Integr Plant Biol, 2013, 55: 759-774[本文引用:2]
[23]
Stuber CW, Lincoln SE, Wolff DW, HelentjarisT, Land er ES. Identification of genetic factors contributing to heterosis in a hybrid from two elite maize inbred lines using molecular markers. , 1992, 132: 823-839[本文引用:1]
[24]
王懿波, 王振华, 王永普, 张新, 陆利行. 中国玉米主要种质杂交优势利用模式研究, 中国农业科学, 1997, 30(4) : 16-24Wang YB, Wang ZH, Wang YP, ZhangX, Lu LX. Studies on the heterosis utilizing models of main maize germplasms in China. Sci Agric Sin, 1997, 30(4): 16-24 (in Chinese with English abstract)[本文引用:2]
[25]
滕文涛, 曹靖生, 陈彦惠, 刘向辉, 景希强, 张发军, 李建生. 十年来中国玉米杂种优势群及其模式变化的分析. 中国农业科学, 2004, 37: 1804-1811Teng WT, Cao JS, Chen YH, Liu XH, Jing XQ, Zhang FJ, Li JS. Analysis of maize heterotic groups and patterns during past decade in China. Sci Agric Sin, 2004, 37: 1804-1811 (in Chinese with English abstract)[本文引用:2]
[26]
袁亮, 丁冬, 李卫华, 谢惠玲, 汤继华, 付志远. 玉米优良自交系单片段代换系的构建. 玉米科学, 2012, 20(2): 52-55YuanL, DingD, Li WH, Xie HL, Tang JH, Fu ZY. Construction of single segment substitution lines (SSSLs) of the elite inbred lines in maize. J Maize Sci, 2012, 20(2): 52-55 (in Chinese with English abstract)[本文引用:1]
[27]
Duvick DN. Biotechnology in the 1930s: the development of hybrid maize. , 2001, 2: 69-74[本文引用:1]
[28]
Tang JH, Ma XQ, Teng WT, Yan JB, Wu WR, Dai JR, Li JS. Detection of quantitative trait loci and heterosis for plant height in maize in ‘‘immortalized F2’’ (IF2) population. , 2006, 51: 2864-2869[本文引用:1]
[29]
Wei XY, WangB, PengQ, WeiF, Mao KJ, Zhang XG, SunP, Liu ZH, Tang JH. Heterotic loci for various morphological traits of maize detected using a single segment substitution lines test-cross population. Mol Breed, 2015, 35(3): 1-13[本文引用:1]
[30]
Tang JH, Yan JB, Ma XQ, Teng WT, Dai JR, Dhillon BS, Melchinger AE. Dissection of the genetic basis of heterosis in an elite maize hybrid by QTL mapping in an “immortalized F2” population. Theor Appl Genet, 2010, 120: 333-340[本文引用:1]
[31]
王懿波, 王振华, 陆利行, 王永普, 张新, 田曾元. 中国玉米种质基础、杂种优势群划分与杂种优势模式研究. , 1998, 6(1): 9-13Wang YB, Wang ZH, Lu LH, Wang YP, ZhangX, Tian ZY. Studies on maize germplasm base, division of heterosis groups and utilizing models of heterosis in China. , 1998, 6(1): 9-13 (in Chinese with English abstract)[本文引用:1]
[32]
吴金凤, 宋伟, 王蕊, 田红丽, 李雪, 王凤格, 赵久然, 蔚荣海. 利用SNP标记对51份玉米自交系进行类群划分. 玉米科学, 2014, 22(5): 29-34Wu JF, SongW, WangR, Tian HL, LiX, Wang FG, Zhao JR, Wei RH. Heterotic grouping of 51 maize inbred lines by SNP markers. J Maize Sci, 2014, 22(5): 29-34 (in Chinese with English abstract)[本文引用:1]