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Chromosome-associated control of meiotic pairing differentiation. Variation within Secale cereale

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Abstract

The frequency of association of two specific chromosome arms in marked (telocentric) trisomics is reported for different chromosome genotypes, and compared with expected frequencies with random pairing. It appears that gross-structurally identical but genetically slightly different chromosomes of the same species, although they pair very efficiently in the diploid, show considerable variation in respect to association in a competitive situation in trisomies. The critical sites can be transferred by corssing over, thus changing the pairing pattern. The two arms of one chromosome are independent in respect to their pairing properties.

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Authors and Affiliations

  1. Department of Genetics, Agricultural University, Wageningen

    J. Sybenga

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  1. J. Sybenga
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Sybenga, J. Chromosome-associated control of meiotic pairing differentiation. Variation within Secale cereale . Chromosoma 39, 351–360 (1972). https://doi.org/10.1007/BF00326172

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  • DOI: https://doi.org/10.1007/BF00326172

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