Phylogeny of Phyllophoraceae (Rhodophyta, Gigartinales) reveals Asterfilopsis gen. nov. from the Southern Hemisphere
Phylogeny of Phyllophoraceae (Rhodophyta, Gigartinales) reveals Asterfilopsis gen. nov. from the Southern Hemisphere
复制标题
Phyllophoraceae（红藻门，Gigartinales）的系统发育揭示了 Asterfilopsis gen。
作者：
M. S. Calderon;S. Boo
摘要：利用核大亚基核糖体RNA、线粒体COI和质体rbcL基因序列及形态学研究，对来自秘鲁和智利的Ahnfeltiopsis furcellata和Gymnogongrus discipline的系统发育位置进行了研究。结合（LSU + COI + rbcL）和rbcL数据集，均显示A. furcellata和G. disciplinary一致形成一个分支与两个秘鲁类群。这些物种生殖结构的形成和发育支持了分子系统发育，并强调了A. furcellata区别于Phyllophoraceae的其它属。因此，我们描述了Asterfilopsis gen. nov.和transfer A. furcellata和G.新属的学科。Asterfilopsis的特征是：（1）有髓细胞被果孢子囊簇径向包围，并与其中一些相连，（2）存在孔而不是专门的果气孔，（3）存在穿透囊果边界的末端管状生殖细胞。本文还描述了两个新种，Asterfilopsis centralis和A. piurana，很可能被误认为是A。叉状的
Abstract: We investigated the phylogenetic position of Ahnfeltiopsis furcellata and Gymnogongrus disciplinalis from Peru and Chile using nuclear large-subunit ribosomal RNA, mitochondrial COI and plastid rbcL sequences and morphological examination. Both the combined (LSU + COI + rbcL) and rbcL data sets revealed that A. furcellata and G. disciplinalis consistently formed a clade with two Peruvian taxa. The form and development of the reproductive structures of these species supported the molecular phylogeny and underlined the fact that the clade of A. furcellata was distinct from other genera of Phyllophoraceae. We therefore describe Asterfilopsis gen. nov. and transfer A. furcellata and G. disciplinalis to the new genus. Asterfilopsis was characterised by (1) having medullary cells radially surrounded by clusters of carposporangia and connected to some of them, (2) the presence of ostioles instead of specialised carpostomata, and (3) the presence of terminal tubular gonimoblasts penetrating the cystocarp boundary. We also describe two new species, Asterfilopsis centralis and A. piurana, likely misidentified earlier as A. furcellata.
影响因子：
10.7
作者：
Pond, SLK;Frost, SDW
通讯作者：
Frost, SDW
影响因子：
1.6
作者：
Silvestro, Daniele;Michalak, Ingo
通讯作者：
Michalak, Ingo