Arid
DOI10.1080/00087114.2011.10589766
Cytogenetic Rationale for Probable Amphidiploid Origin of Dipcadi erythraeum Webb. & Berth. - A Rare and Endemic Plant of Indian Thar Desert
Rawat, Deepika2; Sharma, Santosh Kumar1; Mahmoudi, Arman3; Rao, Satyawada Rama1
通讯作者Rao, Satyawada Rama
来源期刊CARYOLOGIA
ISSN0008-7114
出版年2011
卷号64期号:1页码:75-83
英文摘要

Five accessions of Dipcadi erythraeum, a rare and endemic, bulbous medicinal plant of Thar desert in India, were collected from different districts of Rajasthan (India) to study the intra-specific genetic variation existing in their natural populations. To resolve species specific cytogenetical mechanism leading to evolution of D. erythraeum, mitotic and meiotic analyses were carried out. The karyotypes of various accessions of D. erythraeum were precisely resolved into ten distinct homologous pairs, not into groups of chromosomes. A striking feature observed meiotically is that bivalents are the most frequent association, while multivalent associations were completely absent in any of the PMCs presently analyzed. Almost diploid like behavior of chromosomes has been the hallmark of the PMCs investigated presently. Overall cytogenetical mechanism underlying the speciation and evolution indicates the probable amphidiploid origin of D. erythraeum.


英文关键词amphidiploid Hyacinthaceae meiosis mitotic complements univalents
类型Article
语种英语
国家India ; Iran
收录类别SCI-E
WOS记录号WOS:000294378300009
WOS关键词CYTOLOGY
WOS类目Plant Sciences ; Genetics & Heredity
WOS研究方向Plant Sciences ; Genetics & Heredity
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/167524
作者单位1.NE Hill Univ, Dept Biotechnol & Bioinformat, Shillong 793014, Meghalaya, India;
2.Jai Narain Vyas Univ, Dept Bot, Cytogenet & Mol Biol Lab, Jodhpur, Rajasthan, India;
3.Univ Mazandaran, Dept Biol, Babol Sar, Iran
推荐引用方式
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Rawat, Deepika,Sharma, Santosh Kumar,Mahmoudi, Arman,et al. Cytogenetic Rationale for Probable Amphidiploid Origin of Dipcadi erythraeum Webb. & Berth. - A Rare and Endemic Plant of Indian Thar Desert[J],2011,64(1):75-83.
APA Rawat, Deepika,Sharma, Santosh Kumar,Mahmoudi, Arman,&Rao, Satyawada Rama.(2011).Cytogenetic Rationale for Probable Amphidiploid Origin of Dipcadi erythraeum Webb. & Berth. - A Rare and Endemic Plant of Indian Thar Desert.CARYOLOGIA,64(1),75-83.
MLA Rawat, Deepika,et al."Cytogenetic Rationale for Probable Amphidiploid Origin of Dipcadi erythraeum Webb. & Berth. - A Rare and Endemic Plant of Indian Thar Desert".CARYOLOGIA 64.1(2011):75-83.
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