Genetic differences between two sibling species of the Polydora ciliata complex (Polychaeta: Spionidae)

As part of a research project directed at the genetic control of Teleogryllus commodus (Wlk.) in Australia, hybridisation studies have been carried out between T. commodus and the sibling species T. oceanicus (Le Guillou). A cytological examination of a hybrid strain (male progeny of T. commodus × T. oceanicus backcrossed to T. oceanicus) was made in the F4 generation when meiotic stability had been reached. The karyotype was very similar to that of T. oceanicus, suggesting that only those combinations in which the chromosomes were structurally homologous to T. oceanicus survived. But the stridulation pattern of the hybrid males, intermediate between that of the two parental species, and a consistent sex ratio of 2:1 in favour of the males, indicate profound genetic differences from T. oceanicus. These effects are attributed to introgression, with chromosomal material from T. commodus being incorporated in the T. oceanicus genome as an outcome of the initial hybridisation of the two species.

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Genetic differences between two allopatric sibling species of the genus Polydora (Polychaeta: Spionidae) from the West Pacific

Biochemical Systematics and Ecology ◽

10.1016/0305-1978(94)90079-5 ◽

1994 ◽

Vol 22 (8) ◽

pp. 767-773 ◽

Cited By ~ 7

Author(s):

Gennady P. Manchenko ◽

Vasily I. Radashevsky

Keyword(s):

Sibling Species ◽

Genetic Differences ◽

The West ◽

West Pacific

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Genetic Differences Among Sibling Species of the SubgenusDimockatax(Acari: Unionicolidae:Unionicola): Heterogeneity in Dna Sequence Data Supports Morphological Differentiation

International Journal of Acarology ◽

10.1080/17088180809434784 ◽

2008 ◽

Vol 34 (4) ◽

pp. 403-407 ◽

Cited By ~ 6

Author(s):

Brian R. Ernsting ◽

Dale D. Edwards ◽

Malcolm F. Vidrine ◽

Han Cun

Keyword(s):

Dna Sequence ◽

Sibling Species ◽

Sequence Data ◽

Morphological Differentiation ◽

Genetic Differences ◽

Dna Sequence Data

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Large genetic differences between sibling species of bats, Eptesicus, from Australia

Heredity ◽

10.1038/hdy.1982.55 ◽

1982 ◽

Vol 48 (3) ◽

pp. 435-438 ◽

Cited By ~ 4

Author(s):

M Adams ◽

P R Baverstock ◽

C R Tidemann ◽

D P Woodside

Keyword(s):

Sibling Species ◽

Genetic Differences

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Two sibling species of Leiopus Audinet-Serville, 1835 (Coleoptera: Cerambycidae) from Europe: L. nebulosus (Linnaeus, 1758) and L. linnei sp. nov.

Zootaxa ◽

10.11646/zootaxa.2010.1.3 ◽

2009 ◽

Vol 2010 (1) ◽

pp. 31-45 ◽

Cited By ~ 4

Author(s):

HENRIK WALLIN ◽

ULF NYLANDER ◽

TORSTEIN KVAMME

Keyword(s):

New Species ◽

Dna Barcoding ◽

Geographical Distribution ◽

Sibling Species ◽

Male Genitalia ◽

Strong Support ◽

Genetic Differences ◽

The Common ◽

A New Species

The common European cerambycid Leiopus nebulosus (Linnaeus, 1758) is herein split into two sibling species. The male genitalia characters, as well as spermathecae in females, were examined and found to provide strong support for this separation. A new species, Leiopus linnei sp. nov., is based on specimens mainly from Scandinavia. The establishment of the new species is supported by DNA barcoding of Scandinavian specimens of L. nebulosus, L. linnei sp. nov., and L. punctulatus (Paykull, 1800). There are significant genetic differences between all these species. The geographical distribution and the bionomy of L. nebulosus and L. linnei sp. nov. are described. The type of Cerambyx nebulosus Linnaeus, 1758 is lost. A neotype of Cerambyx nebulosus, currently Leiopus nebulosus (Linnaeus, 1758), is designated and a redescription of L. nebulosus is presented. A key for the identification of L. nebulosus and L. linnei sp. nov. is provided. The varieties L. nebulosus var. dissimilis Pic, 1889, L. nebulosus var. unifasciatus Pic, 1891, and L. nebulosus var. siculus Pic, 1924 are considered as junior synonyms, syn.nov. of L. nebulosus.

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