A cytotaxonomic analysis of Chinese Polygonatum (Asparagaceae) species. (25th April 2014)

• Record Type: Journal Article
• Authors: Zhao, Li‐Hua; Zhou, Song‐Dong; He, Xing‐Jin; Wang, Zhi‐Xin; Peng, Lu
• Is Part Of: Nordic journal of botany. Volume 32:Number 4(2014:Aug.)
• Page Start: 441
• Page End: 451
• Publication Date: 2014-04-25
• Subjects: Botany -- Periodicals; Mycology -- Periodicals; 580
• DOI: 10.1111/njb.00255
• Languages: English
• ISSNs: 0107-055X

Abstract

<abstract abstract-type="main" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <p>Chromosome numbers and karyotype data of 19 Chinese <italic>Polygonatum</italic> species generated from 51 populations are presented in this paper. Karyograms of <italic>P. cirrhifoliodes, P. gracile, P. hookeri, P. jinzhaiense</italic> and <italic>P. nodosum</italic> are reported for the first time. The chromosome numbers 2n = 28 for <italic>P. hookeri</italic> and 2n = 60 for <italic>P. zanlanscianense</italic> are reported for the first time. Satellite chromosomes in the analyzed <italic>Polygonatum</italic> species can be classified into nine types with respect to the position of secondary constrictions. The occurrence of these types correlates with the infrageneric classification. Karyotypes are bimodal in most <italic>Polygonatum</italic> species. Polyploidy is common in <italic>Polygonatum</italic>, and polyploid taxa exhibit higher karyotype asymmetry.</p> </abstract>