Abstract
An analysis is made of meiotic pairing of hybrids whether or not deficient in the chromosome V (5B) from crosses between Mono V (5B) T. aestivum var. Chinese Spring and Secale cereale and Aegilops columnaris. Transmission rates of deficiency are not equal for both combinations. Isochromosomes are found in the hybrid plants.
5B deficiency allows the pairing and recombination between the chromosomes of wheat and those of the related species. Such deficiency may be a useful wheat breeding tool to introduce alien variation into such cultivated species.
Effectiveness of 5B deficiency on meiotic pairing of the hybrids, measured as the increase of the proportion of complement paired, is 36–37% and 49–50% in the hybrids involving rye and Ae. columnaris respectively.
Minimum percentages of the introduction of alien variation into wheat are established for the material investigated: 2% for rye and 28% for Ae. columnaris.
Methods of utilisation of the 5B deficiency in a programme of wheat breeding are discussed and outlined.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Levan, A., 1942. Studies on the meiotic mechanism of haploid rye. Hereditas 28: 177–211.
Morrison, J. W., 1953. Chromosome behaviour in wheat monosomics. Heredity 7: 203–217.
Prakken, R., 1943. Studies of asynapsis in rye. Hereditas 29: 475–495.
Riley, R., 1960. The diploidisation of polyploid wheat. Heredity 15: 407–429.
Riley, R. and Chapman, V., 1958. Genetic control of the cytologically diploid behaviour of hexaploid wheat. Nature 182: 713–715.
Riley, R. and Chapman, V., 1963 The effects of the deficiency of chromosome V (5B) of Triticum aestivum on the meiosis of synthetic amphiploids. Heredity 18(4): 473–484.
Riley, R., Chapman, V. and Kimber, G., 1959. Genetic control of chromosome pairing in intergeneric hybrids with wheat. Nature 183: 1244–1246.
Riley, R. and Law, C. N., 1965. Genetic variation in chromosome pairing. Adv. Genet. 13: 57–114.
Sánchez-Monge, E. and Mac Key, J., 1948. On the origin of subcompactoids in Triticum vulgare. Hereditas 34: 321–337.
Sears, E. R. 1944., Cytogenetic studies with polyploid species of wheat. II. Additional chromosomal aberrations in Triticum vulgare. Genetics 29: 232–246.
Sears, E. R., 1952. Misdivision of univalents in common wheat. Chromosoma 4(6): 535–550.
Sears E. R., 1954. The aneuploids of common wheat. Mo. Agric. Expt Sta. Res. Bull: 572, 59 pp.
Tsunewaki, K., 1964. The transmission of the monosomic condition in a wheat variety, Chinese Spring, II. A critical analysis of nine year records. Jap. J. Genet. 38: (4) 270–281.
Upadhya, M. D. and Swaminathan, M. S., 1963. Chromosome pairing and morphological characters in 27-and 28-chromosome hybrids between rye and monosomics of homoeologous group V of bread wheat. Ind. J. Genet. Plant Breed. 23(3): 225–231.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Lacadena, JR. Introduction of allien variation into wheat by gene recombination. I. Crosses between mono V (5B) Triticum aestivum L. and Secale cereale L. and Aegilops columnaris zhuk.. Euphytica 16, 221–230 (1967). https://doi.org/10.1007/BF00043458
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00043458