Karyotypic analysis of wild taxa ofVigna unguiculata(L.) Walpers
作者:
期刊:
Caryologia
(Taylor Available online 1997)
卷期:
Volume 50,
issue 2
页码: 125-138
ISSN:0008-7114
年代: 1997
DOI:10.1080/00087114.1997.10797392
出版商: Taylor & Francis
关键词: Vignaspp;chromosome;karyotype;image analysis;evolution;breeding
数据来源: Taylor
摘要:
The work refers on karyotypic analysis of mitotic chromosomes carried out on 11 wild taxa ofVigna unguiculata(L.) Walpers, by means of image analysis. Low degree in karyological variability was found. The results are in agreement with those obtained through hybridisation investigations carried out between the cultigen and its wild relatives. The data further confirm that despite cowpea is characterised by a high morphological variability, such a diversity is not accompanied though by similar chromosomal variation. The work also indicates the possibility to distinguish each accession thanks the presence of «marker chromosomes». For each accession the Stebbins's symmetric index was estimated. Each karyotype was compared with all the others through Resemblance between chromosomes (REC) and Symmetric indices (Syi) indices which allowed to represent karyological matchings.
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