scholarly journals Resolving the Ophioderma longicauda (Echinodermata: Ophiuroidea) cryptic species complex: five sisters, three of them new

2020 ◽  
Author(s):  
Sabine Stöhr ◽  
Alexandra Anh-Thu Weber ◽  
Emilie Boissin ◽  
Anne Chenuil
Keyword(s):  
Cryptic Species ◽  
Species Complex ◽  
Eastern Mediterranean ◽  
Ventral Side ◽  
West African ◽  
Valid Species ◽  
Nuclear Clusters ◽  
Cryptic Species Complex ◽  
Ventral Disc ◽  
Variable Morphology

The conspicuous Mediterranean brittle star Ophioderma longicauda (Bruzelius, 1805) has been discovered to represent a cryptic species complex, consisting of six nuclear clusters with contrasting reproductive modes (broadcast spawners and brooders). Here, O. longicauda is re-described. It is distinguished by a dark reddish-brown colouration both dorsally and on the ventral disc, and multiple tumid dorsal arm plates. One eastern Mediterranean brooding cluster is described as O. zibrowii sp. nov., characterized by a dark olive-green colour both dorsally and on the ventral disc, and single dorsal arm plates. Another brooder is described from Tunisia as O. hybrida sp. nov., with a highly variable morphology that reflects its origin by hybridization of O. longicauda and a brooder (possibly O. zibrowii sp. nov.), leaving the third brooding cluster as morphologically indistinguishable at this point and possibly conspecific with one of the others. The West-African O. guineense Greef, 1882 is resurrected as a valid species, differing morphologically from O. longicauda by predominantly single dorsal arm plates and light green or creamy white ventral side. Also from West Africa, O. africana sp. nov. is described, characterized by a dark brown colour, dorsally and ventrally, and single dorsal arm plates.

Description of Three Pristionchus Species (Nematoda: Diplogastridae) from Japan that Form a Cryptic Species Complex with the Model Organism P. pacificus

2012 ◽  
Vol 29 (6) ◽  
pp. 403 ◽  
Author(s):  
Natsumi Kanzaki ◽  
Erik J. Ragsdale ◽  
Matthias Herrmann ◽  
Werner E. Mayer ◽  
Ralf J. Sommer
Keyword(s):  
Cryptic Species ◽  
Species Complex ◽  
Model Organism ◽  
Cryptic Species Complex

scholarly journals A next generation approach to species delimitation reveals the role of hybridization in a cryptic species complex of corals

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Andrea M. Quattrini ◽  
Tiana Wu ◽  
Keryea Soong ◽  
Ming-Shiou Jeng ◽  
Yehuda Benayahu ◽  
...  
Keyword(s):  
Cryptic Species ◽  
Species Delimitation ◽  
Species Complex ◽  
Next Generation ◽  
Cryptic Species Complex

scholarly journals Deceleration of morphological evolution in a cryptic species complex and its link to paleontological stasis

Evolution ◽  
2019 ◽  
Vol 74 (1) ◽  
pp. 116-131 ◽  
Author(s):  
José Cerca ◽  
Christian Meyer ◽  
Dave Stateczny ◽  
Dominik Siemon ◽  
Jana Wegbrod ◽  
...  
Keyword(s):  
Cryptic Species ◽  
Species Complex ◽  
Morphological Evolution ◽  
Cryptic Species Complex

scholarly journals Aeolidia papillosa(Linnaeus, 1761) (Mollusca: Heterobranchia: Nudibranchia), single species or a cryptic species complex? A morphological and molecular study

2016 ◽  
Vol 177 (3) ◽  
pp. 481-506 ◽  
Author(s):  
Karen Kienberger ◽  
Leila Carmona ◽  
Marta Pola ◽  
Vinicius Padula ◽  
Terrence M. Gosliner ◽  
...  
Keyword(s):  
Cryptic Species ◽  
Species Complex ◽  
Single Species ◽  
Molecular Study ◽  
Cryptic Species Complex

Reproductive incompatibility among genetic groups of Bemisia tabaci supports the proposition that the whitefly is a cryptic species complex

2010 ◽  
Vol 100 (3) ◽  
pp. 359-366 ◽  
Author(s):  
J. Xu ◽  
P.J. De Barro ◽  
S.S. Liu
Keyword(s):  
Cryptic Species ◽  
Bemisia Tabaci ◽  
Species Complex ◽  
Phylogenetic Analyses ◽  
Strong Support ◽  
Crossing Experiments ◽  
Complex Species ◽  
Putative Species ◽  
Reproductive Incompatibility ◽  
Cryptic Species Complex

AbstractThe worldwide distribution and extensive genetic diversity of the whitefly Bemisia tabaci has long been recognized. However, whether B. tabaci is a complex species or a species complex has been a subject of debate. Recent phylogenetic analyses suggest that B. tabaci is a cryptic species complex composed of at least 24 morphologically indistinguishable species. Here, we conducted crossing experiments and demonstrated reproductive incompatibility among three of the 24 putative species. Our data and those of previously reported crossing experiments among various putative species of B. tabaci were collated to reveal the pattern of reproductive isolation. The combined results provide strong support to the proposition that B. tabaci is a cryptic species complex.

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