期刊
BIODIVERSITY DATA JOURNAL
卷 4, 期 -, 页码 -出版社
PENSOFT PUBLISHERS
DOI: 10.3897/BDJ.4.e10003
关键词
megatransect; genome size; cytotype variation; Urtica
资金
- Natural History Museum (London, UK) Life Sciences Departmental Investment Fund [SDF13010]
- Marie Sklodowska Curie Action Individual Fellowship program (CAPITULA) [657918]
Background The common stinging nettle, Urtica dioica L. sensu lato, is an invertebrate superhost, its clonal patches maintaining large populations of insects and molluscs. It is extremely widespread in Europe and highly variable, and two ploidy levels (diploid and tetraploid) are known. However, geographical patterns in cytotype variation require further study. New information We assembled a collection of nettles in conjunction with a transect of Europe from the Aegean to Arctic Norway (primarily conducted to examine the diversity of Salix and Salix-associated insects). Using flow cytometry to measure genome size, our sample of 29 plants reveals 5 diploids and 24 tetraploids. Two diploids were found in SE Europe (Bulgaria and Romania) and three diploids in S. Finland. More detailed cytotype surveys in these regions are suggested. The tetraploid genome size (2C value) varied between accessions from 2.36 to 2.59 pg. The diploids varied from 1.31 to 1.35 pg per 2C nucleus, equivalent to a haploid genome size of c. 650 Mbp. Within the tetraploids, we find that the most northerly samples (from N. Finland and arctic Norway) have a generally higher genome size. This is possibly indicative of a distinct population in this region.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据