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C-banding patterns in six taxa of Paris (Melanthiaceae)

Author:
Cheng, Haoran, Zhou, Qinfen, Li, Xu, Zhou, Yonghong, Yang, Ruiwu, Zhang, Li, Ding, Chunbang
Source:
Caryologia 2014 v.67 no.2 pp. 106-109
ISSN:
2165-5391
Subject:
Melanthiaceae, chromosome banding, chromosome morphology, chromosome number, chromosomes, diploidy, interspecific variation, karyotyping
Abstract:
C-banding patterns were analyzed in six taxa of Paris : P . polyphylla var. chinensis , P . marmorata , P . luquanensis , P . thibetica , P . polyphylla var. yunnanensis and P . polyphylla var. alba . All plants had a diploid chromosome number of 10. The basic banding consisted of three metacentric and two teloblastic chromosomes. All taxa showed interspecific variation in karyotype structure. P . thibetica had a unique C-banding pattern, having six bands on the long arm of the middle median centromeric chromosomes. P . polyphylla var. yunnanensis had mostly faint C-bands. Chromosome morphology and C-banding patterns have been used for chromosome identification and population divergence detection.
Agid:
1226007