Gene flow between two closely related species in the acuticollis species group (Coleoptera: Lucanidae: genus Platycerus) near their distribution border based on morphology and mitochondrial gene

2011 ◽  
Vol 14 (2) ◽  
pp. 198-202 ◽  
Author(s):  
Kôhei KUBOTA ◽  
Noriko KUBOTA
Keyword(s):  
Gene Flow ◽  
Related Species ◽  
Mitochondrial Gene ◽  
Species Group ◽  
Closely Related Species

scholarly journals On the Species of the Dugesia Gonocephala Group (Platyhelminthes, Turbellaria, Tricladida) from Greece

1984 ◽  
Vol 54 (1) ◽  
pp. 101-126 ◽  
Author(s):  
Elizabeth J. de Vries
Keyword(s):  
New Species ◽  
Related Species ◽  
Mediterranean Region ◽  
Eastern Mediterranean ◽  
Eastern Mediterranean Region ◽  
Species Group ◽  
Closely Related Species ◽  
Dugesia Gonocephala Group

Dugesia gonocephala is a species group, comprising numerous closely related species, which differ from each other in morphological and karyological aspects. In this paper known and presently described species, of the group from the eastern Mediterranean region, are reviewed. Hitherto the triclads of this region have been poorly known in comparison with their western counterparts. Yet there is a wealth of species in the area. Six well-delimited new species of the Dugesia gonocephala group are described and one further species is rescued from synonymy. The wealth of material available has also made possible an assessment of the taxonomic validity of many characters usually considered to be of importance within this difficult group.

Electrogena brulini sp. nov. and E. vipavensis Zurwerra & Tomka, 1986 syn. nov. revealed by integrative taxonomy of E. gridellii (Grandi, 1953) (Ephemeroptera: Heptageniidae)

Zootaxa ◽  
2017 ◽  
Vol 4362 (3) ◽  
pp. 359 ◽  
Author(s):  
ANDRE WAGNER ◽  
LAURENT VUATAZ ◽  
MICHEL SARTORI
Keyword(s):  
New Species ◽  
Genetic Analysis ◽  
Related Species ◽  
Mitochondrial Gene ◽  
Integrative Taxonomy ◽  
Northern Italy ◽  
Closely Related Species ◽  
Colour Patterns ◽  
A New Species ◽  
Subjective Synonym

A new species belonging to the speciose genus Electrogena Zurwerra & Tomka, 1985 is described based on all stages from material collected in Switzerland, northern Italy and Slovenia. Electrogena brulini Wagner sp. nov. is closely related to E. gridellii (Grandi, 1953). A genetic analysis based on the mitochondrial gene CO1, including 9 specimens from 5 populations, reveals a K2P distance of 22% between both species. Our investigations demonstrate that the description of the nymph of E. gridellii sensu Belfiore (1996) refers in fact to both species. Therefore, E. gridellii is redescribed in all stages. The number of bristles on each mandibular prostheca in the nymphs, the shape of titillators in male genitalia and the shape of the subanal plate in female imagines are the main characters allowing discrimination of these two species. This study also shows that in this case it is possible and helpful to use colour patterns to separate two closely related species. The re-examination of the type material of Electrogena vipavensis Zurwerra & Tomka, 1986 described from western Slovenia indicates that this species is a junior subjective synonym of E. gridellii. 

scholarly journals A NEW ANTHAXIA FROM THE AEOLIAN ISLANDS (COLEOPTERA, BUPRESTIDAE)

2010 ◽  
Vol 42 (2) ◽  
pp. 499
Author(s):  
Pietro Lo Cascio ◽  
Ignazio Sparacio
Keyword(s):  
New Species ◽  
Related Species ◽  
Body Shape ◽  
Species Group ◽  
Colour Pattern ◽  
Closely Related Species ◽  
Aeolian Islands ◽  
Endemic Taxon

<em>Anthaxia</em> (<em>Haplanthaxia</em>) <em>flaviae</em> n. sp. from the Aeolian Islands (Italy, Sicily) belonging to the <em>A</em>. (<em>H</em>.) <em>olympica</em> Kiesenwetter, 1880 species-group is described, illustrated and compared with <em>A</em>. (<em>H</em>.) <em>scutellaris</em> (Gené, 1839), the most closely related species. From this latter, the new species differs mainly for size and body shape, colour pattern of elytrae, shape of antennomera, margin of anterior tibiae and shape of aedeagus. Some zoogeographical considerations concerning the insular distribution of this endemic taxon are briefly discussed.

scholarly journals Genetic analyses of several Drosophila ananassae-complex species show a low-frequency major gene for parthenogenesis that maps to chromosome 2

2004 ◽  
Vol 83 (2) ◽  
pp. 83-89 ◽  
Author(s):  
MUNEO MATSUDA ◽  
YOSHIKO N. TOBARI
Keyword(s):  
Related Species ◽  
Genetic Basis ◽  
Present Report ◽  
Major Gene ◽  
American Samoa ◽  
Species Group ◽  
Drosophila Ananassae ◽  
Chromosome 2 ◽  
Closely Related Species ◽  
Complex Species

Parthenogenetic strains of several species have been found in the genus Drosophila. The mode of diploidization in the eggs of females has been found to be post-meiotic nuclear fusion. The genetic basis for this parthenogenesis is not understood but is believed to be under the control of a complex polygenic system. We found parthenogenetic females in an isofemale strain (LAE345) of D. pallidosa-like collected in 1981 at Lae, Papua New Guinea, and established a parthenogenetically reproducing strain. Parthenogenetic strains of D. ananassae and D. pallidosa collected at Taputimu, American Samoa had also been established by Futch (1972). D. ananassae, D. pallidosa and D. pallidosa-like are very closely related species belonging to the ananassae complex of the ananassae species subgroup of the melanogaster species group. Using these three species, we found that more than 80% of females from parthenogenetic strains produced progeny parthenogenetically and that inter-specific hybrid females also produced impaternate progeny. In the present report, we demonstrate that the mode of parthenogenesis of D. ananassae appears to be the post-meiotic nuclear doubling of a single meiotic product, and that a major gene responsible for the parthenogenesis maps to the left arm of the second chromosome of D. ananassae. We also suggest that the genetic basis for parthenogenesis capacity may be identical among the three closely related species. We discuss the function of the gene required for parthenogenesis and its significance for the evolutionary process.

scholarly journals Genetic analysis of a wild-caught hybrid between non-sister Heliconius butterfly species

2007 ◽  
Vol 3 (6) ◽  
pp. 660-663 ◽  
Author(s):  
Kanchon K Dasmahapatra ◽  
Armando Silva-Vásquez ◽  
Jae-Woo Chung ◽  
James Mallet
Keyword(s):  
Gene Flow ◽  
Genetic Analysis ◽  
Related Species ◽  
Species Boundaries ◽  
Butterfly Species ◽  
Distant Hybridization ◽  
Closely Related Species ◽  
Naturally Occurring ◽  
Heliconius Melpomene ◽  
Wing Coloration

Interspecific hybridization occurs regularly in wild Heliconius butterflies, although hybrid individuals are usually very rare. However, hybridization generally occurs only between the most closely related species. We report a rare naturally occurring hybrid between non-sister species and carry out the first genetic analysis of such distant hybridization. Mitochondrial and nuclear genes indicate that the specimen is an F 1 hybrid between a female Heliconius ethilla and a male Heliconius melpomene , originating from a group of 13 species estimated to have diverged over 2.5 Myr ago. The presence of such distant natural hybrids, together with evidence for backcrossing, suggests that gene flow across species boundaries can take place long after speciation. Adaptive genes such as those involved in wing coloration could thus be widely shared among members of this highly mimetic genus.

scholarly journals Head Transcriptomes of Two Closely Related Species of Fruit Flies of theAnastrepha fraterculusGroup Reveals Divergent Genes in Species with Extensive Gene Flow

2016 ◽  
Vol 6 (10) ◽  
pp. 3283-3295 ◽  
Author(s):  
Victor Borges Rezende ◽  
Carlos Congrains ◽  
André Luís A. Lima ◽  
Emeline Boni Campanini ◽  
Aline Minali Nakamura ◽  
...  
Keyword(s):  
Gene Flow ◽  
Related Species ◽  
Fruit Flies ◽  
Closely Related Species

scholarly journals Toward a comprehensive COI DNA barcode library for Swiss Stoneflies (Insecta: Plecoptera) with special emphasis on the genus Leuctra

Zoosymposia ◽  
2016 ◽  
Vol 11 ◽  
pp. 135-155 ◽  
Author(s):  
JEAN-LUC GATTOLLIAT ◽  
GILLES VINÇON ◽  
SOFIA WYLER ◽  
JAN PAWLOWSKI ◽  
MICHEL SARTORI
Keyword(s):  
Mitochondrial Gene ◽  
Dna Barcode ◽  
Pcr Amplification ◽  
Species Group ◽  
Genetic Distances ◽  
Gene Trees ◽  
Closely Related Species ◽  
Additional Tool ◽  
Non Destructive ◽  
Level Identification

The Swiss Barcode of Life initiative (SwissBOL) aims to inventory the genetic biodiversity in Switzerland using a short DNA sequence. DNA barcoding provides an additional tool for species identification that complements traditional morphological approaches. We report on the establishment of a DNA barcode library for Plecoptera, taxa that are of great importance as bioindicators of water quality and that often present difficulties in species-level identification for larvae and female specimens. Non-destructive DNA extraction, PCR amplification and sequencing of part of the mitochondrial gene Cytochrome Oxidase I (COI) was conducted for 440 individuals (one to eight per species) belonging to 90 species (of the 112 reported from Switzerland). Intra and interspecific distances were calculated and gene trees reconstructed. In most cases, COI was efficient in delimiting stonefly species. Some doubtful specimens were subsequently re-examined and a few misidentifications were found, especially in some problematic groups in the genus Leuctra Stephens, 1836. Larger genetic distances in some species (e.g. Leuctra nigra (Olivier 1811)) indicate the possible presence of sibling species, while in a few cases closely related species are genetically difficult to separate (within the Leuctra fusca species group).

scholarly journals Review of the Eumerus tricolor species group (Diptera: Syrphidae) in Iran, with description of six new species

2020 ◽  
Vol 722 ◽  
Author(s):  
Ebrahim Gilasian ◽  
Jeroen Van Steenis ◽  
Mehrdad Parchami-Araghi
Keyword(s):  
New Species ◽  
Related Species ◽  
Male Genitalia ◽  
Morphological Character ◽  
Species Group ◽  
Identification Key ◽  
Wing Vein ◽  
Closely Related Species

The species of the Eumerus tricolor species group in Iran are reviewed. Six species new to science are described from Iran, i.e., Eumerus atricolorus Gilasian &#38; van Steenis sp. nov., E. brevipilosus Gilasian &#38; van Steenis sp. nov., E. chekabicus Gilasian &#38; van Steenis sp. nov., E. ovoformus Gilasian &#38; van Steenis sp. nov., E. pilosipedes Gilasian &#38; van Steenis sp. nov. and E. vallicolus Gilasian &#38; van Steenis sp. nov. Three species, E. hissaricus Stackelberg, 1949, E. longitarsis Peck, 1979 and E. richteri Stackelberg, 1960, are newly recorded from Iran. Photographs of the species as well as illustrations of the male genitalia of the new species and closely related species are provided. An identification key to the males of the Iranian Eumerus tricolor species group is presented. A row of long posterodorsal setae on the wing vein costa basally is presented and argued as a new diagnostic morphological character for the entire Eumerus tricolor species group.

Bioacoustics and morphology of a new bush-cricket species of the genus Isophya (Orthoptera: Phaneropterinae) from Turkey

Zootaxa ◽  
2018 ◽  
Vol 4514 (4) ◽  
pp. 451
Author(s):  
HASAN SEVGİLİ
Keyword(s):  
New Species ◽  
Preliminary Data ◽  
Related Species ◽  
Species Group ◽  
Sperm Number ◽  
Closely Related Species ◽  
Northeastern Part ◽  
Male Calling ◽  
Interesting Species ◽  
Bush Cricket

A new interesting species of the genus Isophya, I. horon sp. n., is described from Northeastern part of Turkey. The new species can clearly be distinguished from the closely related species by the calling song of male, and morphology. Morphologically, the shapes of the pronotum, tegmina, male cerci and ovipositor are distrinctive. The morphology, song structure and distribution clearly indicate that this new species is a member of the I. zernovi species-group. Additionally, some preliminary data on the male calling songs of closely related species (I. zernovi, I. karadenizensis and I. autumnalis) are also given. In addition, the preliminary data related to spermatophore characteristics (spermatophylax and ampulla weights) and sperm number of the new species are provided. 

Description of Ecdyonurus solus sp. nov., a new species of the Ecdyonurus venosus species-group (Ephemeroptera: Heptageniidae) from the Crimean Peninsula, Ukraine

Zootaxa ◽  
2007 ◽  
Vol 1620 (1) ◽  
pp. 53-62
Author(s):  
MAŁGORZATA KŁONOWSKA-OLEJNIK ◽  
GRIGORII A. PROKOPOV ◽  
ROMAN J. GODUNKO
Keyword(s):  
New Species ◽  
Related Species ◽  
Species Group ◽  
Mountainous Region ◽  
Detailed Data ◽  
Closely Related Species ◽  
Crimean Peninsula ◽  
A New Species ◽  
The Crimean Peninsula

The larvae and adults of Ecdyonurus solus sp. nov., are described and illustrated. This species is found in the mountainous region of the Crimean Peninsula, and belongs to the Ecdyonurus venosus species-group. SEM photographs of the eggs of new species are presented. The distinguishing characteristics separating this E. solus sp. nov. from closely related species of the E. venosus species-group are discussed. Detailed data on the biology and distribution of the new species are presented.

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