干旱区生态环境知识资源中心(Arid): A Case of Structural Heterozygosity Affecting Chiasma Frequency and Pollen Fertility in Natural Populations of Artemisia roxburghiana

Arid

DOI	10.1508/cytologia.84.167
	A Case of Structural Heterozygosity Affecting Chiasma Frequency and Pollen Fertility in Natural Populations of Artemisia roxburghiana
	Tantray, Younas Rasheed 1; Singhal, Vijay Kumar 1; Gupta, Himshikha 1; Rana, Pawan Kumar 1; Kaur, Dalvir 2; Gupta, Raghbir Chand 1
通讯作者	Tantray, Younas Rasheed
来源期刊	CYTOLOGIA
ISSN	0011-4545
出版年	2019
卷号	84 期号:2 页码:167-171
英文摘要	Meiotic studies have been carried out on six accessions of Artemisia roxburghiana from four regions of Western Himalayas. The accessions collected from Chamba, Kinnaur and Kullu districts of Himachal Pradesh and Kargil district of Jammu and Kashmir showed a normal meiotic course leading to high pollen fertility. However, the accession collected from Drass region of cold deserts of Ladakh, Jammu, and Kashmir showed abnormal meiosis caused by structural heterozygosity for reciprocal translocations. The present study adds the first report of structural heterozygosity in the species. Chiasma frequency was also calculated in the accessions to see the effect of reciprocal translocations. Besides, reciprocal translocation, the accession also showed various meiotic abnormalities in the form of the early disjunction of bivalents, chromatin bridges and laggards leading to abnormal microsporogenesis. Structural heterozygosity and other meiotic abnormalities in the accession seem to be responsible for a reduction in pollen fertility.
英文关键词	Meiosis Artemisia roxburghiana Structural heterozygosity Western Himalaya
类型	Article
语种	英语
国家	India
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000474331300013
WOS关键词	PARVATI VALLEY ; RECIPROCAL TRANSLOCATIONS ; HIMACHAL-PRADESH ; CHROMOSOMES ; ASSOCIATIONS ; ASTERACEAE ; REDUCTION ; CYTOMIXIS ; CYTOLOGY ; HIMALAYA
WOS类目	Cell Biology ; Genetics & Heredity
WOS研究方向	Cell Biology ; Genetics & Heredity
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215018
作者单位	1.Punjabi Univ, Dept Bot, Patiala 147002, Punjab, India; 2.Patel Mem Natl Coll, Rajpura 140401, Punjab, India
推荐引用方式 GB/T 7714	Tantray, Younas Rasheed,Singhal, Vijay Kumar,Gupta, Himshikha,et al. A Case of Structural Heterozygosity Affecting Chiasma Frequency and Pollen Fertility in Natural Populations of Artemisia roxburghiana[J],2019,84(2):167-171.
APA	Tantray, Younas Rasheed,Singhal, Vijay Kumar,Gupta, Himshikha,Rana, Pawan Kumar,Kaur, Dalvir,&Gupta, Raghbir Chand.(2019).A Case of Structural Heterozygosity Affecting Chiasma Frequency and Pollen Fertility in Natural Populations of Artemisia roxburghiana.CYTOLOGIA,84(2),167-171.
MLA	Tantray, Younas Rasheed,et al."A Case of Structural Heterozygosity Affecting Chiasma Frequency and Pollen Fertility in Natural Populations of Artemisia roxburghiana".CYTOLOGIA 84.2(2019):167-171.