干旱区生态环境知识资源中心(Arid): New Base Number for the Chromosomally Abnormal Genus Arthraxon P. Beauv. from Rajasthan

Arid

DOI	10.3103/S0095452719020038
	New Base Number for the Chromosomally Abnormal Genus Arthraxon P. Beauv. from Rajasthan
	Kaur, Navjot; Gupta, Raghbir Chand
通讯作者	Kaur, Navjot
来源期刊	CYTOLOGY AND GENETICS
ISSN	0095-4527
EISSN	1934-9440
出版年	2019
卷号	53 期号:2 页码:178-183
英文摘要	During present investigation, 4 populations covering 3 species of the genus Arthraxon P. Beauv. have been worked out cytologically from different localities of Indian hot desert, Rajasthan. Two of the three species show n = 14 (A. lanceolatus and A. lancifolius), whereas, A. hispidus show the chromosome count of n= 18. A. lanceolatus show varaiable sized bivalents i.e. two large and twelve small sized bivalents, whereas, A. lancifolius shows normal equal sized bivalents. These large sized bivalents previously might be confused with quadrivalents but during A-I it clearly indicates the chromosome count of 2n = 28. It (n = 14) is the first time reported chromosomal count for the species of the genus from the world with new proposed base number x = 7 and thus the species are considered to be tetraploid. All the three species are the first chromosome reports from Rajasthan with various meiotic abnormalities like laggards, multiple bridges, cytomixis, chromatin transfer which results in abnormal microsporogenesis and low pollen viability.
英文关键词	Arthraxon species male meiosis abnormal meiotic behavior new proposed base number Rajasthan
类型	Article
语种	英语
国家	India
收录类别	SCI-E
WOS记录号	WOS:000468091700009
WOS关键词	CYTOLOGICAL INVESTIGATIONS ; INDIAN COMPOSITAE ; GRASSES
WOS类目	Genetics & Heredity
WOS研究方向	Genetics & Heredity
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215022
作者单位	Punjabi Univ, Dept Bot, Patiala 147002, Punjab, India
推荐引用方式 GB/T 7714	Kaur, Navjot,Gupta, Raghbir Chand. New Base Number for the Chromosomally Abnormal Genus Arthraxon P. Beauv. from Rajasthan[J],2019,53(2):178-183.
APA	Kaur, Navjot,&Gupta, Raghbir Chand.(2019).New Base Number for the Chromosomally Abnormal Genus Arthraxon P. Beauv. from Rajasthan.CYTOLOGY AND GENETICS,53(2),178-183.
MLA	Kaur, Navjot,et al."New Base Number for the Chromosomally Abnormal Genus Arthraxon P. Beauv. from Rajasthan".CYTOLOGY AND GENETICS 53.2(2019):178-183.