Size doesn't matter-recircumscription of Microlejeunea (Lejeuneaceae, Porellales) based on molecular and morphological evidence
Size doesn't matter-recircumscription of Microlejeunea (Lejeuneaceae, Porellales) based on molecular and morphological evidence
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DOI：
10.11646/phytotaxa.85.2.2
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发表时间：
2013-03-08
期刊：
影响因子：
1.1
通讯作者：
Heinrichs, Jochen
中科院分区：
文献类型：
--
作者：
Dong, Shanshan;Schaefer-Verwimp, Alfons;Heinrichs, Jochen
通过系统发育分析，我们发现了三个Lejeuneaceae的分子标记（叶绿体基因组rbcL基因和trnL-F区，核核糖体ITS 1 -5. 8 S-ITS 2区），并将其划分为Harpalejeunea、Lejeunea和Microlejeunea三个主要类群。分类群Harpalejeunea fischeri，H. filicuspis，H. latantans和Pluvianthus squarrosus嵌套在一个分支中，其中包括属型M的几个代表Microlejeunea。非洲，并转移到后者属。Harpalejeunea和Microlejeunea与Lejeunea的区别在于存在ocelli。Harpalejeunea有分叉，钝的下叶裂片，与Microlejeunea的向前定向，钝到锐尖的下叶裂片相反。形态相似的加入Microlejeunea形成独立的谱系。在马达加斯加、马拉维和留尼汪岛发现了新记录的Drepanolejeunea vandenberghenii。
Phylogenetic analyses of a three marker dataset of Lejeuneaceae (chloroplast genome rbcL gene and trnL-F region, and nuclear ribosomal ITS1-5.8S-ITS2 region) resolve the "Lejeunea complex" in three main lineages assigned here to Harpalejeunea, Lejeunea and Microlejeunea. The taxa Harpalejeunea fischeri, H. filicuspis, H. latitans and Pluvianthus squarrosus are nested in a clade with several representatives of Microlejeunea including the generitype M. africana, and are transferred to the latter genus. Harpalejeunea and Microlejeunea differ from Lejeunea by the presence of ocelli. Harpalejeunea has diverging, blunt underleaf lobes in contrast to the forward directed, blunt to acute underleaf lobes of Microlejeunea. Morphologically similar accessions of Microlejeunea form independent lineages. Drepanolejeunea vandenberghenii is newly reported for Madagascar, Malawi and Reunion.