美属萨摩亚的红菇科：新物种及对萨摩亚外生菌根真菌源自澳大拉西亚的进一步支持。

Russulaceae in American Samoa: new species and further support for an Australasian origin for Samoan ectomycorrhizal fungi.

作者信息

Kropp Bradley R

机构信息

Biology Department, 5305 Old Main Hill, Utah State University, Logan, Utah 84322

出版信息

Mycologia. 2016 Mar-Apr;108(2):405-13. doi: 10.3852/15-171. Epub 2016 Jan 6.

DOI:10.3852/15-171

PMID:26740540

Abstract

Two new species from the Russulaceae, Lactifluus aurantiotinctus and Russula pallidirosea, are described from American Samoa. Based on analyses of nuc rDNA internal transcribed spacer region barcodes (ITS), L. aurantiotinctus has an affinity to subgenus Lactariopsis and strong phylogeographic ties to Papua New Guinea. The ITS data indicate that Russula pallidirosea has an affinity to subgenus Heterophyllidia and suggest that it also has phylogeographic ties to Australasia. Both species were associated with the ectomycorrhizal tree Intsia bijuga.

摘要

描述了来自美属萨摩亚的红菇科两个新物种，橙黄乳牛肝菌（Lactifluus aurantiotinctus）和浅玫瑰红红菇（Russula pallidirosea）。基于对核糖体DNA内转录间隔区条形码（ITS）的分析，橙黄乳牛肝菌与乳牛肝菌亚属（Lactariopsis）有亲缘关系，并且与巴布亚新几内亚有很强的系统地理学联系。ITS数据表明，浅玫瑰红红菇与异形叶亚属（Heterophyllidia）有亲缘关系，并表明它也与澳大拉西亚有系统地理学联系。这两个物种都与外生菌根树双翅铁（Intsia bijuga）有关。