Summary
Twenty populations (cultivars) of rye Secale cereale L., cultivated in Spain and Portugal have been analyzed to ascertain if they are polymorphic for the chromosome structure. In 9 Spanish cultivars interchange heterozygous individuals have been found with frequencies ranging from about 1 to 10 per cent. All the heterozygotes analyzed showed similar cytogenetic characteristics. The evolutionary significance of the intraspecific chromosomal polymorphism found in Secale cereale populations is discussed from the karyotypic orthoselection point of view. Likewise, the necessity of a reappraisal of the role of reciprocal translocations in cytotaxonomic studies of Gramineae is suggested.
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Figueiras, A.M., Candela, M. & Lacadena, J.R. Reciprocal translocations in Spanish and Potuguese natural populations of cultivated rye, Secale cereale L.. Euphytica 32, 493–498 (1983). https://doi.org/10.1007/BF00021460
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DOI: https://doi.org/10.1007/BF00021460