Chromosome number variation in a promising oilseed woody crop, Plukenetia volubilis L. (Euphorbiaceae)

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	Chromosome number variation in a promising oilseed woody crop, Plukenetia volubilis L. (Euphorbiaceae)
	Cai, Z. Q.
刊名	Caryologia
	2013
卷号	66 期号:1 页码:54-58
ISSN号	0008-7114
中文摘要	Cytology of a promising oilseed woody crop, Plukenetia volubilis, was analyzed for the first time here. There are in total 11 different chromosome numbers, ranging from 2n = 50 to 2n = 86 in P. volubilis. Different numbers were found not only in different root tips but also in different cells of the same tip. Among the cells, 2.78% cells had the lowest chromosome number of 2n = 50; and 1.39% cells had the highest chromosome number of 2n = 86. The most common chromosome number is 2n = 58 and about 27.79% cells had this quantity of chromosomes. The chromosomes were extremely small in size, at less than 2 mu m. Thus, analysis of chromosome morphology was impaired. Polyploidy, confirmed as the significant evolutionary trend in chromosome number within this species, is briefly discussed. This species is a problematic and polymorphic taxon and our results indicate that its polyploidy can be regarded as the reason.
语种	英语
公开日期	2015-02-11
内容类型	期刊论文
源URL	[http://ir.xtbg.org.cn/handle/353005/8324]
专题	西双版纳热带植物园_热带植物资源可持续利用重点实验室特色文献_星油藤相关文献
推荐引用方式 GB/T 7714	Cai, Z. Q.. Chromosome number variation in a promising oilseed woody crop, Plukenetia volubilis L. (Euphorbiaceae)[J]. Caryologia,2013,66(1):54-58.
APA	Cai, Z. Q..(2013).Chromosome number variation in a promising oilseed woody crop, Plukenetia volubilis L. (Euphorbiaceae).Caryologia,66(1),54-58.
MLA	Cai, Z. Q.."Chromosome number variation in a promising oilseed woody crop, Plukenetia volubilis L. (Euphorbiaceae)".Caryologia 66.1(2013):54-58.