Molecular mapping of gibberellin-responsive dwarfing genes in bread wheat

被引:243
作者
Ellis, MH
Rebetzke, GJ
Azanza, F
Richards, RA
Spielmeyer, W
机构
[1] CSIRO Plant Ind, Canberra, ACT 2601, Australia
[2] Graingene, Griffith, ACT 2603, Australia
[3] Syngenta Seeds SAS, F-31790 St Sauveur, France
关键词
wheat; reduced height; dwarfing genes; microsatellite markers; marker-assisted selection;
D O I
10.1007/s00122-005-2008-6
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Opportunities exist for replacing reduced height (Rht) genes Rht-B1b and Rht-D1b with alternative dwarfing genes for bread wheat improvement. In this study, the chromosomal locations of several height-reducing genes were determined by screening populations of recombinant inbred lines or doubled haploid lines varying for plant height with microsatellite markers. Linked markers were found for Rht5 (on chromosome 3BS), Rht12 (5AL) and Rht13 (7BS), which accounted for most of the phenotypic variance in height in the respective populations. Large height differences between genotypes (up to 43 cm) indicated linkage to major height-reducing genes. Rht4 was associated with molecular markers on chromosome 2BL, accounting for up to 30% of the variance in height. Confirming previous studies, Rht8 was linked to markers on chromosome 2DS, whereas a population varying for Rht9 revealed a region with a small but significant height effect on chromosome 5AL. The height-reducing effect of these dwarfing genes was repeatable across a range of environments. The molecular markers developed in this study will be useful for marker-assisted selection of alternative height-reducing genes, and to better understand the effects of different Rht genes on wheat growth and agronomic performance.
引用
收藏
页码:423 / 430
页数:8
相关论文
共 25 条
[1]   SEEDLING EMERGENCE RATE OF FALL-SOWN WHEAT AND ITS ASSOCIATION WITH PLANT HEIGHT AND COLEOPTILE LENGTH [J].
ALLAN, RE ;
PETERSON, CJ ;
VOGEL, OA .
AGRONOMY JOURNAL, 1962, 54 (04) :347-&
[2]  
Bonnett D.G., 2001, P 10 AUSTR WHEAT BRE, P154
[3]   The effect of different height reducing genes on the early growth of wheat [J].
Ellis, MH ;
Rebetzke, GJ ;
Chandler, P ;
Bonnett, D ;
Spielmeyer, W ;
Richards, RA .
FUNCTIONAL PLANT BIOLOGY, 2004, 31 (06) :583-589
[4]  
Evans L.T., 1993, CROP EVOLUTION ADAPT
[5]  
Gale M. D., 1982, Semi-dwarf cereal mutants and their use in cross-breeding, research coordination meeting, 2-6 March, 1981, Vienna, P7
[6]  
Gale M. D., 1985, Progress in plant breeding - 1, P1
[7]  
Konzak CF, 1988, SEM CER MUT THEIR US, P39
[8]   Intrachromosomal mapping of genes for dwarfing (Rht12) and vernalization response (Vrn1) in wheat by using RFLP and microsatellite markers [J].
Korzun, V ;
Roder, M ;
Worland, AJ ;
Borner, A .
PLANT BREEDING, 1997, 116 (03) :227-232
[9]   Genetic analysis of the dwarfing gene (Rht8) in wheat.: Part I.: Molecular mapping of Rht8 on the short arm of chromosome 2D of bread wheat (Triticum aestivum L.) [J].
Korzun, V ;
Röder, MS ;
Ganal, MW ;
Worland, AJ ;
Law, CN .
THEORETICAL AND APPLIED GENETICS, 1998, 96 (08) :1104-1109
[10]  
LINCOLN SE, 1993, MAPMAKER EXP VERSION