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Genome relationships in the diploid oats

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Abstract

Genome relationships between the three diploid oats, Avena strigosa (S.), A. longiglumis (L.) and A. prostrata (P.) were studied by chromosome pairing in diploid hybrids and in synthetic triploids and tetraploids combining these genomes. Fairly regular pairing in the diploid hybrid and typical autopolyploid behavior in the triploids and in the amphidiploid suggest small differentiation in the chromosome architecture of A. longiglumis and A. prostrata. A. strigosa diverges from the other two oats by complex chromosome rearrangements. Conspicuous preferential pairing took place in triploids with SSL, SSP and SPP genomic constitution. The low bivalent frequency in the SLL triploid suggests that preferential pairing in triploids with two S genomes is not a consequence of chromosome rearrangement but is rather of genetic origin. The presence of the three genomes in a triploid or a tetraploid caused considerable meiotic irregularities suggesting a better pairing competition of the S genome.

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References

  • Davies, D. R.: The embryo culture of interspecific hybrids of Hordeum. New Phytol. 59, 9–14 (1960)

    Google Scholar 

  • Doyle, G. G.: Preferential pairing in structural heterozygotes of Zea mays. Genetics 48, 1011–1027 (1963)

    Google Scholar 

  • Dyck, P. L.: Inheritance of stem rust and other characteristics in diploid oats Avena strigosa. Canad. J. Genet. Cytol. 8, 444–450 (1966)

    Google Scholar 

  • Gerstel, D. U.: Chromosomal control of preferential pairing in Nicotiana. Science 133, 579–580 (1961)

    Google Scholar 

  • Holden, J. H. W.: Chromosome relationships in Avenae. Chromosoma (Berl.) 20, 75–124 (1966)

    Google Scholar 

  • Jones, K.: Chromosomes and the nature and origin of Anthoxanthum odoratum L. Chromosoma (Berl.) 15, 248–274 (1964)

    Google Scholar 

  • Ladizinsky, G.: Genetic control of bivalent pairing in the Avena strigosa polyploid complex. Chromosoma (Berl.) 42, 105–110 (1973a)

    Google Scholar 

  • Ladizinsky, G.: The cytogenetic position of Avena prostrata among the diploid oats. Canad, J. Genet. Cytol. 15, 443–450 (1973b)

    Google Scholar 

  • Rajhathy, T.: Chromosomal differentiation and speciation in diploid Avena. Canad. J. Genet. Cytol. 3, 372–377 (1961)

    Google Scholar 

  • Sybenga, J.: Reciprocal translocation and preferential pairing in autotetraploid rye. Chromosome today 1, 66–71 (1966)

    Google Scholar 

  • Sybenga, J.: Allopolyploidization of autopolyploids. 2. Manipulation of the chromosome pairing system. Euphytica 22, 433–444 (1973)

    Google Scholar 

  • Thomas, H., Jones, M. L.: Chromosomal differentiation in diploid species of Avena. Canad. J. Genet. Cytol. 7, 108–111 (1965)

    Google Scholar 

  • Tsuchiya, T.: Cytogenetics of a new type of barley with 16 chromosomes. Chromosoma (Berl.) 26, 130–139 (1969)

    Google Scholar 

Download references

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Authors and Affiliations

  1. Faculty of Agriculture, The Hebrew University, Rehovot

    G. Ladizinsky

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  1. G. Ladizinsky
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Ladizinsky, G. Genome relationships in the diploid oats. Chromosoma 47, 109–117 (1974). https://doi.org/10.1007/BF00326275

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  • DOI: https://doi.org/10.1007/BF00326275

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