著者

Ma Yan Crane Charles F. Byrne David H.

出版者

Japan Mendel Society, International Society of Cytology

雑誌

CYTOLOGIA (ISSN:00114545)

巻号頁・発行日

vol.61, no.4, pp.457-463, 1996

被引用文献数

2

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Meiotic chromosome configuration frequencies at diakinesis and metaphase I were tabulated in diploid and induced tetraploid <I>Rosa laevigata</I> Michx., diploid <I>R. roxburghii</I> Tratt., and tetraploid amphidiploids of <I>R. laevigata</I> with <I>R. roxburghii</I> and <I>R. banksiae</I> Ait. Numerical analysis of configuration frequencies suggests up to two-fold length variation between short and long chromosome arms in the diploids, and incomplete independence of chromosome arms during pairing and chiasma formation in the tetraploids. Since the sampled genomes pair homeologously in intersubgeneric amphidiploids, they are relatively closely related. The meiotic data collectively suggest that <I>R. roxburghii</I> should be classified in subgenus <I>Rosa</I>.