Fredericqia (Phyllophoraceae, Rhodophyta) in the northwestern Pacific, with the description of Fredericqia chiharae sp. nov.

Fredericqia (Phyllophoraceae, Rhodophyta) in the northwestern Pacific, with the description of Fredericqia chiharae sp. nov.
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Fredericqia(Phyllophoraceae,Rhodophyta)分布于西北太平洋,描述为Fredericqia chiharae sp。

DOI:
10.1080/00318884.2021.1892399
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发表时间:
2021
期刊:
影响因子:
1.6
通讯作者:
Kitayama Taiju
Kitayama Taiju
中科院分区:
生物学3区
文献类型:
--
作者:
Suzuki Masahiro;Kitayama Taiju

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本文描述了采自日本铫子半岛的一新种Fredericqia(Phyllophoraceae,Rhodophyta)(以前被列为'Gymnogongrus invervatus nom. nud.')基于形态学和分子分析。我们将Fredericqia chiharae sp. nov.结合rbcL、cox 1和28S rDNA分析表明,F. Chiharae属于Fredericqia属,与Fredericqia属的其它种不同,Fredericqia chiharae的特征是叶状体扁平弯曲,边缘增殖,雌雄异株配子体,原果由位于支持细胞上的三细胞果殖子分支组成,基细胞上有不育侧生。对F. chiharae,即囊果松散地浸在髓质中,囊果周围没有次生髓质细胞,存在多个果口,与Fredericqia的一致。Fredericqiachiharaeis是西北太平洋第一个报道的该属的代表。
We describe a new species ofFredericqia(Phyllophoraceae, Rhodophyta) from the Choshi Peninsula, Japan (previously listed as ‘Gymnogongrus incurvatus nom. nud.’) based on morphological and molecular analyses. We assign the binomialFredericqia chiharae sp. nov. to this new entity. Our combinedrbcL,cox1, and 28S rDNA analyses suggested thatF. chiharaebelongs to genusFredericqia, and is distinct from otherFredericqiaspecies.Fredericqia chiharaeis characterized by a flattened incurved thallus, marginal proliferations, dioecious gametophytes and a procarp consisting of a three-celled carpogonial branch situated on a supporting cell and bearing a sterile lateral on the basal cell. The cystocarpic characteristics ofF. chiharae, i.e. a cystocarp loosely immersed in the medulla, the absence of secondary medullary cells around the cystocarp and the presence of multiple carpostomes, are congruent with those ofFredericqia. Fredericqia chiharaeis the first representative of the genus to be reported from the northwestern Pacific.
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