CYTOLOGIA
Online ISSN : 1348-7019
Print ISSN : 0011-4545
Male Meiotic Study in a Newly Detected Triploid Cytotype of Tussilago farfara L. (Asteraceae)
Maninder KaurVijay Kumar Singhal
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JOURNAL OPEN ACCESS

2015 Volume 80 Issue 4 Pages 441-445

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Abstract

Tussilago farfara of family Asteraceae has been worked out cytologically for the first time from India. The presently studied individuals collected from Solang Valley, Kullu District, Himachal Pradesh exist at triploid level with 2n=24 against the earlier highly polyploidy counts of 2n=60 and 2n=72 from outside of India. These individuals depict abnormal meiosis characterized by the presence of trivalents and univalents, unequal distribution of chromosomes and laggards during anaphases/telophases resulting into abnormal sporads and high pollen sterility. The triploid individuals might have originated from a hybridization process involving tetraploid and diploid as putative parents.

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© 2015 The Japan Mendel Society
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