The use of chromosome substitutions and translocations in the breeding of triticale, wheat and rye

Hordeum bulbosum chromosomes 1Hb, 4Hb, 6Hb, and 7Hb were identified in five monosomic and one double monosomic H. vulgare – H. bulbosum substitution using 11 isozyme systems. In all substitutions analyzed, diagnostic isozyme bands for H. bulbosum chromosomes were found in the same isozyme systems and zones having diagnostic value for the homoeologous H. vulgare chromosomes. However, bands that are normally diagnostic for the 3Hv region appeared in one 6Hv substitution and in one selfed progeny from another 6Hv substitution.Key words: Hordeum vulgare, Hordeum bulbosum, alien chromosome substitutions, isozymes, chromosome identification, homoeologous relationships.

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Chromosomal effects on In Vitro morphogenesis in Wheat intervarietal Substitution Lines

Czech Journal of Genetics and Plant Breeding ◽

10.17221/3658-cjgpb ◽

2011 ◽

Vol 42 (No. 1) ◽

pp. 15-19 ◽

Cited By ~ 2

Author(s):

N.D. Tyankova ◽

N. Zagorska ◽

V. Chardakov ◽

A. Dryanova ◽

B. Dimitrov

Keyword(s):

Chinese Spring ◽

Regeneration Ability ◽

Substitution Lines ◽

In Vitro Morphogenesis ◽

Chromosome Substitutions ◽

Allele Variation ◽

Two Parameters ◽

Wheat Lines ◽

Intervarietal Substitution Lines

The effect of individual chromosomes on in vitro morphogenic ability of immature embryos was studied using a Chinese Spring/Timstein substitution series. For this purpose 20 wheat lines of Chinese Spring with consequently substituted chromosome pairs from the cultivar Timstein together with the two parental cultivars were investigated. The regeneration ability of the studied lines was quantified by two parameters: frequency of regenerative calli and coefficient of propagation. The influence of the 5A, 1B and 4D chromosomes on in vitro morphogenesis was determined and the effect of 2A, 3A, 3B, 4B, 6B and 1D chromosomes, reported by other authors, was confirmed. The data indicated that the intervarietal substitutions of certain chromosomes caused significant variation in the number of morphogenic calli and recovered regenerants, in spite of the fact that the two parental cultivars were of similar morphogenic ability. This probably reflects the allele variation in a given locus on these chromosomes and/or background effect. The data suggest that the chromosome substitutions may have different compensatory effects depending on the similarity of the corresponding chromosomes and also on the possibilities of their expression in an alien genetic background.  

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Utilization of Intervarietal Chromosome Substitutions in Breeding Winter Wheat

Plant Breeding ◽

10.1111/j.1439-0523.1991.tb00476.x ◽

1991 ◽

Vol 106 (1) ◽

pp. 33-38 ◽

Cited By ~ 1

Author(s):

A. Meinel ◽

A. Holldorf ◽

C. Jakuszeit

Keyword(s):

Winter Wheat ◽

Chromosome Substitutions

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The analysis of inter-varietal chromosome substitutions in wheat and their first generation hybrids

Heredity ◽

10.1038/hdy.1972.22 ◽

1972 ◽

Vol 28 (2) ◽

pp. 169-179 ◽

Cited By ~ 11

Author(s):

C N Law

Keyword(s):

First Generation ◽

Chromosome Substitutions

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The effects of whole chromosome substitutions differing in alleles for hybrid dwarfing and photoperiodic sensitivity on tissue culture response (TCR) in wheat

Euphytica ◽

10.1007/bf00015723 ◽

1996 ◽

Vol 89 (1) ◽

pp. 81-86 ◽

Cited By ~ 4

Author(s):

I. M. Ben Amer ◽

A. J. Worland ◽

A. B�rner

Keyword(s):

Tissue Culture ◽

Tissue Culture Response ◽

Photoperiodic Sensitivity ◽

Chromosome Substitutions

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CHROMOSOME SUBSTITUTION IN HEXAPLOID WHEAT

Canadian Journal of Botany ◽

10.1139/b56-046 ◽

1956 ◽

Vol 34 (4) ◽

pp. 629-640 ◽

Cited By ~ 22

Author(s):

John Unrau ◽

Clayton Person ◽

John Kuspira

Keyword(s):

Common Wheat ◽

Hexaploid Wheat ◽

Gene Dosage ◽

Single Line ◽

Chromosome Substitution ◽

Substitution Lines ◽

Substitution Method ◽

Reciprocal Translocations ◽

Chromosome Substitutions

The procedures involved in the various phases of chromosome substitution in common wheat are briefly outlined and explained. Complications encountered with reciprocal translocations are clarified. The following subjects are discussed: development of chromosome-deficient series in other varieties, transfer of single chromosomes from donor varieties to chromosome-deficient lines to develop substitution lines, alien substitutions, and combination of two chromosome substitutions into a single line. There is a brief discussion of the value of the chromosome substitution method especially in the study of gene dosage and interaction as affecting certain characters.

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