Molecular evidence of allodiploidy in F1 gametophytic blades from a cross between Neopyropia yezoensis and a cryptic species of the Neopyropia yezoensis complex (Bangiales, Rhodophyta) by the use of microsatellite markers

AbstractThis paper focuses on the species diversity among the Trichostrongylidae Leiper, 1912 (Nematoda: Strongylida), and complexity of the family systematics. Polymorphism (subfamilies: Ostertagiinae, Cooperiinae and Haemonchinae), the presence of cryptic species (genus: Teladorsagia) and hybridization (genera: Cooperia, Haemonchus and Ostertagia) are presented and discussed, considering both morphological and molecular evidence. Some of these phenomena are common, nevertheless not sufficiently understood, which indicates the need for expanding the current state of knowledge thereof. Within the Trichostrongylidae, species distinction supported merely by morphological features is difficult, and requires confirmation by means of molecular methods. The parasitic nematode taxonomy is complicated mainly by the genus Teladorsagia, but complexity may also be expected among other Ostertagiinae (e.g. in the genera Ostertagia and Marshallagia). The data presented here show that the members of the Trichostrongylidae can significantly complicate unambiguous species identification. Hence, it is essential to consider the phenomena mentioned, to gather valid and comparable data on the biodiversity of this family.

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Cryptic Sebastes norvegicus species in Greenland waters revealed by microsatellites

ICES Journal of Marine Science ◽

10.1093/icesjms/fsx039 ◽

2017 ◽

Vol 74 (8) ◽

pp. 2148-2158 ◽

Cited By ~ 5

Author(s):

Atal Saha ◽

Lorenz Hauser ◽

Rasmus Hedeholm ◽

Benjamin Planque ◽

Svein-Erik Fevolden ◽

...

Keyword(s):

Microsatellite Markers ◽

Cryptic Species ◽

North Atlantic ◽

Species Complex ◽

Fishery Management ◽

Gene Pools ◽

The North ◽

Management Regime ◽

Sustainable Exploitation ◽

The North Atlantic

Abstract Identification of cryptic species can have profound implications in fishery management, conservation and biodiversity contexts. In the North Atlantic, the genus Sebastes is currently represented by four species, although additional cryptic species have been assumed. The connectivity of the gene-pools within the genus in Greenland waters, in particular, remains largely unexplored. Using a panel of 13 microsatellite markers for 720 fish, we explored the species complex of Sebastes norvegicus in Greenland waters. Genetic analyses provided evidence for three cryptic species in samples that were morphologically identified as S. norvegicus. They were termed S. norvegicus-A, S. norvegicus-B, and S. norvegicus-giants. A few phenotypic features exist to identify adult S. norvegicus giants, but no characteristics have been identified for the two other cryptic species. The proposed cryptic species should be recognized in the management regime to ensure sustainable exploitation and conservation of Sebastes species in Greenland waters.

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Molecular Evidence of Cryptic Species within the Liriomyza huidobrensis (Diptera: Agromyzidae)

Journal of Economic Entomology ◽

10.1603/0022-0493-93.4.1146 ◽

2000 ◽

Vol 93 (4) ◽

pp. 1146-1151 ◽

Cited By ~ 59

Author(s):

Sonja J. Scheffer

Keyword(s):

Cryptic Species ◽

Molecular Evidence ◽

Liriomyza Huidobrensis

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Molecular evidence for cryptic species among the Antarctic fish Trematomus bernacchii and Trematomus hansoni

Antarctic Science ◽

10.1017/s0954102097000485 ◽

1997 ◽

Vol 9 (4) ◽

pp. 381-385 ◽

Cited By ~ 20

Author(s):

Giacomo Bernardi ◽

Usha Goswami

Keyword(s):

Cryptic Species ◽

Dna Sequences ◽

Antarctic Fish ◽

The Other ◽

Molecular Evidence ◽

Allozyme Analysis ◽

Mcmurdo Sound ◽

Trematomus Bernacchii ◽

Colour Morphs ◽

The Antarctic

The notothenid species Trematomus bernacchii has previously been shown, by allozyme analysis, to be a complex of two cryptic species, one of which being more closely related to T. hansoni than to the other T. bernacchii cryptic species. Two T. bernacchii colour morphs, “white blotch” and “brown”, at McMurdo Sound, may correspond to these cryptic species. In this study, we present mitochondrial DNA sequences of the 12S and 16S ribosomal regions for six “white blotch” morphs, eight “brown” morphs collected in McMurdo Sound, one individual collected off the Antarctic Peninsula, and two T. hansoni individuals from McMurdo Sound. These sequences were compared with those of T. bernacchii and T. hansoni in the literature. Based on 14 phylogenetically informative sequences, no differences were found between “white blotch” and “brown” morphs. Furthermore, only one substitution separated these sequences from the previously published T. hansoni sequence, while 10 substitutions separated them from the previously published T. bernacchii sequence. Misidentified specimens, and sequence misreadings may be at the origin of these discrepancies. However, the presence of cryptic species within T. bernacchii and T. hansoni is not ruled out.

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