Calliblepharis yasutakei sp. nov. and Hypnea tsudae sp. nov. (Cystocloniaceae, Rhodophyta): novel diversity from the Hawaiian Islands
Calliblepharis yasutakei sp. nov. and Hypnea tsudae sp. nov. (Cystocloniaceae, Rhodophyta): novel diversity from the Hawaiian Islands
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Calliblepharis yasutakei sp.
DOI：
10.11646/phytotaxa.572.1.5
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发表时间：
2022
期刊：
影响因子：
1.1
通讯作者：
SHERWOOD, ALISON R.
中科院分区：
文献类型：
--
作者：
PAIANO, MONICA O.;FUMO, JAMES T.;CABRERA, FERESA P.;KOSAKI, RANDALL K.;SPALDING, HEATHER L.;SHERWOOD, ALISON R.
在过去的15年里，对夏威夷大型藻类的调查已经产生了许多代表科学新物种的标本。这里描述的Calliblepharis yasutakei sp. 11 .是基于一种从夏威夷岛papah<e:1> naumoku<e:1>海洋国家纪念碑Kapou的98米深处采集的植物。利用COI、rbcL和SSU 3个分子标记进行系统发育分析和形态特征分析，对该科新属植物进行了描述。Calliblepharis yasutakei sp. 11 .与C. fibriata、C. rammediorum、C. occidentalis和C. joolyi归为一个分支，完全支持rbcL分析，代表了该属内一个独特的谱系。系统发育和营养形态比较表明，夏威夷新种与以色列的C. rammediorum亲缘关系最密切（rbcL相似性为96.3%），尽管没有发现雌性生殖结构允许进行更全面的比较。为了确定C. yasutakei是否代表夏威夷群岛首次确认的Calliblepharis属，对Bernice P. Bishop博物馆收藏的夏威夷Hypnea saidana （=Calliblepharis saidana）标本进行了系统发育和形态分析。这些分析表明，该标本属于Hypnea属的一个新种，这里描述为H. tsudae sp. nov. C. yasutakei，除了是一个新种之外，也是夏威夷群岛上第一个确认的Calliblepharis属记录，并且H. tsudae的描述使夏威夷夏威夷的该属物种数量增加到8个。
Surveys of Hawaiian macroalgae over the past 15 years have yielded numerous specimens representing species new to science. Calliblepharis yasutakei sp. nov. is here described based on a plant collected at a depth of 98 m from Kapou, Papahânaumokuâkea Marine National Monument, Hawaiʻi. Phylogenetic analyses of three molecular markers (COI, rbcL, and SSU) and analyses of morphological features were used to describe the new species in the family Cystocloniaceae. Calliblepharis yasutakei sp. nov. grouped with C. fimbriata, C. rammediorum, C. occidentalis and C. jolyi in a clade with full support for the rbcL analysis, representing a distinct lineage within the genus. Phylogenetic and vegetative morphological comparisons demonstrated that the new Hawaiian species is most closely related to C. rammediorum from Israel (rbcL similarity of 96.3%), although no female reproductive structures were found to allow a more comprehensive comparison. In order to determine whether C. yasutakei represents the first confirmed report of the genus Calliblepharis in the Hawaiian Islands, phylogenetic and morphological analysis of the Hawaiian Hypnea saidana (=Calliblepharis saidana) specimen accessioned at the Bernice P. Bishop Museum was performed. These analyses demonstrated that this specimen belongs to a new species in the genus Hypnea, which is here described as H. tsudae sp. nov. C. yasutakei, in addition to being a new species, is also reported as the first confirmed record of the genus Calliblepharis in the Hawaiian archipelago, and the description of H. tsudae brings the number of species for this genus in Hawaiʻi to eight.