Advance Search
LI Shao-Bo, YANG Guo-Hua, ZHANG Zhi-Hong, LI Shao-Qing, LI Yang-Sheng, ZHU Ying-Guo. Mapping of QTL Controlling 6 Panicle Traits of Rice under Direct-sowing Environment[J]. Plant Science Journal, 2009, 27(5): 467-472.
Citation: LI Shao-Bo, YANG Guo-Hua, ZHANG Zhi-Hong, LI Shao-Qing, LI Yang-Sheng, ZHU Ying-Guo. Mapping of QTL Controlling 6 Panicle Traits of Rice under Direct-sowing Environment[J]. Plant Science Journal, 2009, 27(5): 467-472.

Mapping of QTL Controlling 6 Panicle Traits of Rice under Direct-sowing Environment

More Information
  • Received Date: November 13, 2008
  • Revised Date: January 31, 2009
  • Published Date: October 28, 2009
  • To characterize the genetic basis of 6 rice panicle traits as well as their relationships with each other,mapping of quantitative trait locus(QTL) was conducted with a RIL(recombinant inbred line) population derived from a cross between ’Lemont’(japonica var.) and ’Teqing’(indica var.) under a direct-sowing field experiment.A total of 19 QTL were identified,numbers of QTL for each trait varied from 2 to 4,and variations explained by each QTL ranged from 4% to 22%.Three chromosome regions were found to have pleiotropic or linked effects on multiple traits.The two regions RM212-RM104 on chromosome 1 and RM263-RM221 on chromosome 2 showed multiple effects on 3 or 4 traits of grain yield per plant,number of spikelets per panicle,panicle setting density and number of secondary rachis branches in the same direction,and the Teqing genotype increased all the trait values at the two regions,providing a genetic explanation for the positive correlations among the four traits.The other region near RG1022 on chromosome 11 showed multiple effects on panicle setting density and panicle length in the opposite directions,and at this region the ’Teqing’ genotype increased the trait value of panicle setting density but decreased the trait value of panicle length,also providing a genetic explanation for the negative correlation between these two traits.In addition,the QTL identified in the present study and previous studies with different mapping populations under vary environments were compared and the application of some stably expressing QTL for high yield breeding programs in rice were discussed.
  • Related Articles

    [1]LÜ Shi-Hong, HUANG Fu-Zhao, LU Shu-Hua, XU Guang-Ping, ZENG Dan-Juan, LI Xian-Kun. Effects of Shrub-grass on Direct Seeding of Cyclobalanopsis glauca and Malania oleifera in Rocky Desertification Mountains in Southwest Guangxi[J]. Plant Science Journal, 2016, 34(1): 38-46. DOI: 10.11913/PSJ.2095-0837.2016.10038
    [2]ZHANG Hong, CHEN Zu-Yu, LI Yang-Sheng, ZHU Ying-Guo. The Mitochondria Genomic Mutation and Function in the Cytoplasmic Male Sterile Line of Maxie Rice[J]. Plant Science Journal, 2007, 25(3): 313-315.
    [3]WANG Jian, BAO Man-Zhu. Application of RAPD on Analysis of Genetic Relationships between Inbred Lines and Prediction of Heterosis in Pansy (Viola wittrockiana)[J]. Plant Science Journal, 2007, 25(1): 19-23.
    [4]REN Xiao-Ping, JIANG Hui-Fang, WANG Sheng-Yu, LIAO Bo-Shou. Genetic Analysis of Root Characters in Recombination Inbred Lines(RIL) of Peanut(Arachis hypogaea L.)[J]. Plant Science Journal, 2006, 24(4): 298-302.
    [5]ZHANG Xiao-Gang, ZHOU Ming, HU Xun, ZHAO Kai-Hong. Site-directed Mutagenesis of the CpeS of Phycocyanin and Study on the Function with Reconstitution in vivo[J]. Plant Science Journal, 2006, 24(3): 191-195.
    [6]Mapping of QTL Controlling Low-temperature Germinability in Rice[J]. Plant Science Journal, 2005, 23(3): 216-220.
    [7]HU Ying, WANG Yi-Zhong. Mapping of QTL Controlling Seedling Cold Tolerance Using Recombinant Inbred Lines of Rice (Oryza sativa L.)[J]. Plant Science Journal, 2005, 23(3): 211-215.
    [8]KONG Ying-Chun, ZHANG Liao. Comparison of QTL for Seedling Height Identified under Two Fertilizer Levels in Rice[J]. Plant Science Journal, 2005, 23(2): 121-124.
    [9]CHEN Wei, LI Wei. Mapping of QTL Conferring Cold Tolerance at Early Seedling Stage of Rice by Molecular Markers[J]. Plant Science Journal, 2005, 23(2): 116-120.
    [10]CHEN Shun-Qiang, WANG Yang, ZHANG Zhi-Hong, WANG Ling-Xia, HU Zhong-Li, LI Ping, ZHU Li-Huang, ZHU Ying-Guo. Genetic Dissection of Vascular Bundle Systems in Peduncle and Panicle Characters in Rice (Oryza sativa L.) by Means of RFLP Markers[J]. Plant Science Journal, 2004, 22(1): 15-21.

Catalog

    Article views (2904) PDF downloads (1863) Cited by()

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return