USE OF THE GENE POOLS OF TRITICUM-TURGIDUM SSP DICOCCOIDES AND AEGILOPS-SQUARROSA FOR THE BREEDING OF COMMON WHEAT (TRITICUM-AESTIVUM), THROUGH CHROMOSOME-DOUBLED HYBRIDS .1. 2 STRATEGIES FOR THE PRODUCTION OF THE AMPHIPLOIDS

被引:22
作者
LANGE, W
JOCHEMSEN, G
机构
[1] DLO-Centre for Plant Breeding and Reproduction Research (CPRO-DLO), Wageningen, NL-6700 AA
关键词
TRITICUM-TURGIDUM SSP DICOCCOIDES; WILD EMMER WHEAT; AEGILOPS-SQUARROSA; INTERSPECIFIC HYBRIDIZATION; SYNTHETIC HEXAPLOID WHEAT; CHROMOSOME DOUBLING; EMBRYO RESCUE; MEIOSIS;
D O I
10.1007/BF00041273
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Triticum turgidum ssp. dicoccoides (wild emmer wheat, AABB, 2n = 28) and Aegilops squarrosa (goat grass, DD, 2n = 14) comprise a rich reservoir of valuable genetic material, which could be useful for the breeding of common wheat (T. aestivum, AABBDD, 2n = 42). Many accessions of both wild species, most of them selected for resistance to stripe rust, were used to make amphiploids. Two strategies were applied: (1) the production of autopolyploid cytotypes of the wild species, followed by hybridisation, and (2) the production of allotriploid interspecific hybrids, followed by doubling of the number of chromosomes. The first route was unsuccessful because of failure of the crosses between the autopolyploid cytotypes, possibly due to incongruity between the two species and to reduced fertility in the autopolyploid cytotypes. The second route yielded the desired synthetic hexaploids. However, the rate of success of the crosses was low and there were great differences between years, and within years between crosses. Embryo rescue was applied to obtain the primary hybrids (2n = 21), which were highly sterile and had on average 0.3 bivalents and 20.4 univalents per pollen mother cell. Various abnormalities were recorded. Doubling of the number of chromosomes sometimes occurred spontaneously or was brought about by colchicine treatment. The large scale of the interspecific hybridisation programme ensured that one-third of the female and one-sixth of the male accessions were represented in the synthetic hexaploids.
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页码:197 / 212
页数:16
相关论文
共 62 条
[41]   SYNTHETIC AMPHIPLOIDS OF WHEAT AS A SOURCE OF RESISTANCE TO KARNAL BUNT (NEOVOSSIA-INDICA) [J].
MULTANI, DS ;
DHALIWAL, HS ;
SINGH, P ;
GILL, KS .
PLANT BREEDING, 1988, 101 (02) :122-125
[42]  
MURASHIGE T, 1962, PHYSIOL PLANTARUM, V14, P423
[43]   GENETIC DIVERSITY OF WILD EMMER WHEAT IN ISRAEL AND TURKEY - STRUCTURE, EVOLUTION, AND APPLICATION IN BREEDING [J].
NEVO, E ;
BEILES, A .
THEORETICAL AND APPLIED GENETICS, 1989, 77 (03) :421-455
[44]  
NEVO E, 1988, 7TH P INT WHEAT GEN, P121
[46]  
RAUPP WJ, 1988, 7TH P INT WHEAT GEN, P879
[47]   THE INTRODUCTION INTO BREAD WHEAT OF A MAJOR GENE FOR RESISTANCE TO POWDERY MILDEW FROM WILD EMMER WHEAT [J].
READER, SM ;
MILLER, TE .
EUPHYTICA, 1991, 53 (01) :57-60
[48]  
RILEY R., 1958, Journal of Heredity, V49, P91
[49]  
RILEY RALPH, 1965, ADVANCE GENET, V13, P57, DOI 10.1016/S0065-2660(08)60047-4
[50]   SALT TOLERANCE IN THE TRITICEAE - THE CONTRIBUTION OF THE D-GENOME TO CATION SELECTIVITY IN HEXAPLOID WHEAT [J].
SHAH, SH ;
GORHAM, J ;
FORSTER, BP ;
JONES, RGW .
JOURNAL OF EXPERIMENTAL BOTANY, 1987, 38 (187) :254-269