期刊
MOLECULAR ECOLOGY
卷 24, 期 23, 页码 5927-5937出版社
WILEY
DOI: 10.1111/mec.13429
关键词
introduced species; introgression; Neosiphonia; Rhodophyta; taxonomy
资金
- Canadian Barcode of Life Network from Genome Canada through the Ontario Genomics Institute
- Natural Sciences and Engineering Research Council of Canada
- Canada Research Chair Program
- Canada Foundation for Innovation
- New Brunswick Innovation Foundation
There is currently conflict in the literature on the taxonomic status of the reportedly cosmopolitan species Neosiphonia harveyi, a common red alga along the coast of Atlantic Canada and New England, USA. Neosiphonia harveyi sensu lato was assessed using three molecular markers: COI-5P, ITS and rbcL. All three markers clearly delimited three genetic species groups within N.harveyi sensu lato in this region, which we identified as N.harveyi, N.japonica and Polysiphonia akkeshiensis (here resurrected from synonymy with N.japonica). Although Neosiphonia harveyi is considered by some authors to be introduced to the Atlantic from the western Pacific, it was only confirmed from the North Atlantic suggesting it is native to this area. In contrast, Neosiphonia japonica was collected from only two sites in Rhode Island, USA, as well as from its reported native range in Asia (South Korea), which when combined with data in GenBank indicates that this species was introduced to the Northwest Atlantic. The GenBank data further indicate that N.japonica was also introduced to North Carolina, Spain, Australia and New Zealand. Despite the fact that all three markers clearly delimited N.harveyi and N.japonica as distinct genetic species groups, the ITS sequences for some N.harveyi individuals displayed mixed patterns and additivity indicating introgression of nuclear DNA from N.japonica into N.harveyi in the Northwest Atlantic. Introgression of DNA from an introduced species to a native species (i.e. genetic pollution') is one of the possible consequences of species introductions, and we believe this is the first documented evidence for this phenomenon in red algae.
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