Species delimitation of Margattea cockroaches from China, with seven new species (Blattodea, Ectobiidae, Pseudophyllodromiinae).

Species delimitation of Margattea cockroaches from China, with seven new species (Blattodea, Ectobiidae, Pseudophyllodromiinae).
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中国蜚蠊蟑螂物种划定,获7个新种(蜚蠊总科、蜚蠊科、假叶蠊亚科)

DOI:
10.3897/zookeys.1036.63232
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发表时间:
2021
期刊:
影响因子:
1.3
通讯作者:
Wang ZQ
Wang ZQ
中科院分区:
生物学3区
文献类型:
--
作者:
He JJ;Jin DT;Wang YS;Che YL;Wang ZQ

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对采自中国27个地区的近450个Margartea标本进行了形态学研究。然后获得68个Margattea COI序列,并使用通用混合Yule Coalescent(GMYC)、自动条形码间隙发现(ABGD)和泊松树过程(bPTP)进行系统发育分析以及物种划分分析。GMYC分析得到21个分子操作分类单位(MOTU)(可信区间:20-22),与bPTP结果完全一致。使用ABGD方法有15个MOTU。MOTU的数量与指定的形态种略有不同(16)。对于形态学与分子生物学结果不一致的问题,我们再次对标本进行了检查,确定大部分形态学差异是种内差异(除了M. angusta和M. Mckittrickae),尽管存在较大的遗传距离。最后,本文对中国的Margartea属16种进行了分类鉴定,并建立了7个新种,即三角齿Margartea deltodonta J-J He & Z-Q Wang,sp. nov.,,Margattea cuspidata J-J He & Z-Q Wang,sp. nov.,尾缘缘缘珠茶Margattea caudata J-J He & Z-Q Wang,sp. nov.,,Margattea paratransversa,sp. nov.,Margattea sp. nov.,横缘缘和Margattea bicruris J-J He & Z-Q Wang,sp. nov.
Nearly 450 Margattea specimens were collected from 27 locations in China and their morphology was examined. Then 68 Margattea COI sequences were obtained and used to carry out phylogenetic analyses as well as species delimitation analyses using General Mixed Yule Coalescent (GMYC), Automatic Barcode Gap Discovery (ABGD), and Poisson Tree Processes (bPTP). GMYC analysis resulted in 21 molecular operational taxonomic units (MOTUs) (confidence interval: 20–22), which was completely consistent with the result of the bPTP. There were 15 MOTUs using the ABGD method. The number of MOTUs was slightly different from the assigned morphospecies (16). As to the incongruence between molecular and morphological results, we checked the specimens again and made sure that most morphological differences were determined to be intraspecific differences (except the difference between M. angusta and M. mckittrickae), although a large genetic distance existed. Finally, 16 Margattea species from China were defined in this study, of which, seven new species are established, i.e. Margattea deltodonta J-J He & Z-Q Wang, sp. nov., Margattea cuspidata J-J He & Z-Q Wang, sp. nov., Margattea caudata J-J He & Z-Q Wang, sp. nov., Margattea paratransversa J-J He & Z-Q Wang, sp. nov., Margattea disparilis J-J He & Z-Q Wang, sp. nov., Margattea transversa J-J He & Z-Q Wang, sp. nov., and Margattea bicruris J-J He & Z-Q Wang, sp. nov.
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