New occurrence of B chromosomes in Rheum tanguticum Maxim. ex Balf. (Polygonaceae)

NWIPB OpenIR

	New occurrence of B chromosomes in Rheum tanguticum Maxim. ex Balf. (Polygonaceae)
	Hu Yanping; Li Wang; Yi Li
	2011-07-01
发表期刊	CARYOLOGIA
卷号	64 期号:3 页码:320-324
文章类型	Article
摘要	A cytogenetic study was conducted on Rheum tanguticum populations from Huangnan Tibetan Autonomous Prefecture, China. The results revealed the chromosome numbers 2n=22 and the karyotype formulae are 2n=22=22m or 2n=22=2sm+20m, belonging to Stebbins 1A type. However, it was interesting to observe metaphases with variable B chromosomes (1, 2, 3, 4, 6, 7) in a few specimens. For the first time, the occurrence of B chromosomes was reported in natural populations of R. tanguticum. The number of B chromosomes in R. tanguticum varied not only among individuals but also within the same root tip.
关键词	b Chromosomes Karyotype Rheum Tanguticum Maxim. Ex Balf.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
关键词[WOS]	NECTRIA-HAEMATOCOCCA MPVI ; CREPIS-CAPILLARIS ; DISPENSABLE CHROMOSOMES ; GENES ; PLANTS ; PATHOGENICITY ; KARYOTYPES ; CHINA ; CELLS ; RUMEX
收录类别	SCI
语种	英语
WOS研究方向	Plant Sciences ; Genetics & Heredity
WOS类目	Plant Sciences ; Genetics & Heredity
WOS记录号	WOS:000301807700010
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/6929
专题	中国科学院西北高原生物研究所
作者单位	Chinese Acad Sci, NW Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810001, Qinghai, Peoples R China
推荐引用方式 GB/T 7714	Hu Yanping,Li Wang,Yi Li. New occurrence of B chromosomes in Rheum tanguticum Maxim. ex Balf. (Polygonaceae)[J]. CARYOLOGIA,2011,64(3):320-324.
APA	Hu Yanping,Li Wang,&Yi Li.(2011).New occurrence of B chromosomes in Rheum tanguticum Maxim. ex Balf. (Polygonaceae).CARYOLOGIA,64(3),320-324.
MLA	Hu Yanping,et al."New occurrence of B chromosomes in Rheum tanguticum Maxim. ex Balf. (Polygonaceae)".CARYOLOGIA 64.3(2011):320-324.