著者

Pool P. A. Ingram Ruth Abbott R. J. Jennings D. L. Topham Pauline B.

出版者

財団法人 日本メンデル協会

雑誌

CYTOLOGIA (ISSN:00114545)

巻号頁・発行日

vol.46, no.1, pp.125-132, 1981

被引用文献数

7

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Previous workers have reported that Rubus chromosomes are too small for karyotype analyses at mitosis, and also that meiotic studies indicate no major structural differences between Rubus genomes. However, it was found possible to identify the seven chromosomes of Glen Clova, a cultivar of R. idaeus, and of R. coreanus. The chromosomes of R. idaeus differed from those of R. coreanus, four of them appreciably, and it was possible to identify each of the 14 chromosomes of four F1hybrids between the two species. In spite of these differences, meiosis and pollen formation in the hybrids appeared normal. It is suggested that genome differentiation in the genus is greater than realised, and that further karyotype analyses may aid studies of species relationships.