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A case of intraspecific euploidy (2x, 4x) and secondary chromosomal associations in wild accessions of Geranium pratense L. from cold deserts of Ladakh (India) 期刊论文
发表期刊: NUCLEUS-INDIA. 出版年: 2020, 卷号: 63, 期号: 2, 页码: 143-149
作者:  Khan, Nissar Ahmad;  Singhal, Vijay Kumar;  Tantray, Younas;  Jaryal, Rohit K.;  Gupta, Raghbir Chand
收藏  |  浏览/下载:4/0  |  提交时间:2021/01/08
Geranium pratense  Polyploidy  Ladakh  North West Himalayas  Stomata  Pollen grains  
First record of chromosome count and cytomixis in an endemic species of Clematis ladakhiana Grey-Wilson (Ranunculaceae) from cold deserts of Jammu and Kashmir 期刊论文
发表期刊: CARYOLOGIA. 出版年: 2018, 卷号: 71, 期号: 3, 页码: 233-237
作者:  Khan, Nissar Ahmad;  Singhal, Vijay Kumar;  Gupta, Raghbir Chand
收藏  |  浏览/下载:10/0  |  提交时间:2019/11/29
Clematis ladakhiana  cytomixis  chromatin transfer  meiotic abnormalities  pollen grains  
Syncyte and ’2n’ Pollen Grain Formation in Heracleum pinnatum: A Possible Mechanism for the Origin of Intraspecific Polyploids 期刊论文
发表期刊: CYTOLOGIA. 出版年: 2016, 卷号: 81, 期号: 3, 页码: 335-339
作者:  Singhal, Vijay Kumar;  Khan, Nissar Ahmad;  Gupta, Raghbir Chand
收藏  |  浏览/下载:2/0  |  提交时间:2019/11/29
Syncyte  Bivalent  Cold desert  Low temperature stress  Ladakh division  PMC  Pollen grain  
Cytomixis Induced Meiotic Irregularities and Pollen Malformation in Clematis graveolens Lindley from the Cold Deserts of Kinnaur District of Himachal Pradesh (India) 期刊论文
发表期刊: CYTOLOGIA. 出版年: 2011, 卷号: 76, 期号: 3, 页码: 319-327
作者:  Singhal, Vijay Kumar;  Kaur, Dalvir
收藏  |  浏览/下载:6/0  |  提交时间:2019/11/29
Clematis graveolens  Cytomixis  Meiotic irregularities  Pollen sterility  Pollen fusion  syncyte PMCs  
Male Meiosis, Microsporogenesis and Pollen Grain Study in Inula cuspidata CB Clarke (Asteraceae) 期刊论文
发表期刊: CYTOLOGIA. 出版年: 2010, 卷号: 75, 期号: 4, 页码: 363-368
作者:  Kaur, Dalvir;  Singhal, Vijay Kumar;  Gupta, Raghbir Chand
收藏  |  浏览/下载:1/0  |  提交时间:2019/11/29
I. cuspidata  Male meiosis  Univalents  Pollen sterility  Heterogeneous sized pollen grains  
Cytology of Caltha palustris L. (Ranunculaceae) from Cold Regions of Western Himalayas 期刊论文
发表期刊: CYTOLOGIA. 出版年: 2008, 卷号: 73, 期号: 2, 页码: 137-143
作者:  Kumar, Puneet;  Singhal, Vijay Kumar
收藏  |  浏览/下载:5/0  |  提交时间:2019/11/28
Aneuploids  Cytomixis  Cytology  Heterogenous pollen grains  Marsh marigold  Meiotic abnormities