Work

Karyotype analysis of Rheum palmatum

Year: 2014

Type: article

Abstract: Rheum palmatum, one of the source plants of the traditional Chinese medicine rhubarb, is anendemic and endangered species. To our knowledge, this is the first report on the chromosome number and karyotype of this species. Sectioning combined with micrography was used to analyze the karyotype. The following results were obtained: R. palmatum had a stable chromosome number 2n = 22; the basic number of chromosomes was 11; karyotype formula is 2n = 22 = 20 metacentric + 2 submetacentric, belonging to Stebbins' 1A type; and karyotype asymmetry index was 55.39%. The present study showed that R. palmatum has a primitive type of karyotype.

Source: Genetics and Molecular Research

DOI: 10.4238/2014.october.31.20

Authors: J.Q. Ye, Y.Y. Jia, K. Fan, X.J. Sun, X.M. Wang

Institution: Xi'an Jiaotong University

Language: English

Topic: Chromosomal and Genetic Variations

Subfield: Genetics

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

Open Access status: bronze

Funder: National Natural Science Foundation of China

Award: 基于种内分化的中药大黄道地性形成的遗传学机制研究