MAEJO INTERNATIONAL JOURNAL OF SCIENCE & TECHNOLOGY

Volume 16, No. 03, Month SEPTEMBER, Year 2022, Pages 223 - 237

Chromosome karyotype analysis of some fritillaria species

Yongming Fan, Lihong Hao, Wei Zhu, Jaime A. Teixeira da Silva, Xiaonan Yu

Abstract Download PDF

Fritillaria (Liliaceae) are a genus of perennial bulbous plants with medicinal and ornamental importance. They are widely distributed in temperate regions of the northern hemisphere and are considered as novelty flowers on the ornamental market. In this study a genetic analysis of chromosome karyotypes of nine Fritillaria spp. in three subgenera was carried out using root tip squashes. Except for F. uva-vulpis, which is triploid (2n = 3x = 33), the other eight Fritillaria species are diploid (2n = 2x = 24). The karyotypes of F. pallidiflora, F. tortifolia and F. verticillata var. albiflora are 2B, while F. imperialis, F. uva-vulpis, F. verticillate, F. yunminensis, F. anhuiensis and F. karelinii are 3B. In addition, results of a clustering analysis using the karyotype near-resemblance coefficient conducted among the eight diploid species support the current classification of the Fritillaria L. subgenera. This study provides cytological evidence for phylogenetics and crossbreeding.

Keywords

Fritillaria L., chromosome, karyotype analysis, phylogeny

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