Cytological Studies in the GenusRosa.1. Mitotic Analysis
作者:
期刊:
Caryologia
(Taylor Available online 1981)
卷期:
Volume 34,
issue 4
页码: 409-417
ISSN:0008-7114
年代: 1981
DOI:10.1080/00087114.1981.10796909
出版商: Taylor & Francis
数据来源: Taylor
摘要:
Somatic chromosomes of 15 roses: diploid, triploid, tetraploid and pentaploid were studied. The chromosomes were grouped into types based on their relative lengths and arm ratios. The longest chromosome of a complement was found to be twice the length of small chromosomes. Two small chromosomes possessed nucleolar organizing regions both in diploids and tetraploids. Additional evidence was obtained from the PMCs where one bivalent was found attached to the nucleolus. There were a few minor differences in the karyotypes of theRosaspecies, hybrids and cultivars, which could be attributed to the hybridization and prolonged hystory of cultivation of roses.
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