Karyotypes of four species of the genus Telenomus Haliday, 1833 (Hymenoptera: Scelionidae)

Gokhman, Vladimir E.; Timokhov, Alexander V.

doi:10.15298/rusentj.29.2.17

Cited by 3 publications

(1 citation statement)

References 8 publications

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“…During the last decades, a few cryptic species of Pteromalidae were discovered and/or studied using cytogenetic techniques. Specifically, Anisopteromalus quinarius Gokhman et Baur, a newly described cosmopolitan parasitoid of stored‐product pests, was initially separated from A. calandrae based on its different chromosome number, n = 5 and 7, respectively (Gokhman et al., 1998; Baur et al., 2014). Another cosmopolitan pteromalid with a similar biology, L. distinguendus , was also found to harbor two cryptic species with n = 5 and 6, which, apart from reproductively isolated members of the genus Anisopteromalus with different chromosome numbers, can hybridize under laboratory conditions (König et al., 2019).…”

Section: Taxonomic Implicationsmentioning

confidence: 99%

Comparative cytogenetics of the families Pteromalidae and Spalangiidae – a review

Gokhman

2024

Entomologia Exp Applicata

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Although chromosomes of only 20 members of Pteromalidae sensu lato (s.l.), which belong to the families Pteromalidae sensu stricto (hence Pteromalidae) and Spalangiidae, are studied up to now, the accumulated cytogenetic information has important implications for taxonomic and evolutionary studies of these parasitoids. Within the former family, which includes the overwhelming majority of karyotypically studied species of Pteromalidae s.l., the known haploid chromosome number (n) can vary from 4 to 7 in Pachycrepoideus vindemmiae (Rondani) and Anisopteromalus calandrae (Howard), respectively, with a clear mode at n = 5. Among these parasitoids, Nasonia vitripennis (Walker) is the most thoroughly studied species in terms of modern cytogenetic techniques. On the contrary, chromosomes of only two members of Spalangiidae are known, both belonging to the Spalangia endius Walker complex, with n = 4 and 6. A few cosmopolitan cryptic species of the family Pteromalidae were studied using cytogenetic approaches. Specifically, Anisopteromalus quinarius Gokhman et Baur, a newly described parasitoid of stored‐product pests with n = 5, was initially separated from A. calandrae based on its different chromosome number. Another pteromalid with a similar biology, Lariophagus distinguendus (Förster), was also found to harbor two cryptic species with n = 5 and 6. Moreover, a morphometric study of these karyotypes suggested that the largest chromosome in the set with n = 5 has resulted from a fusion of two particular chromosomes in the karyotype with n = 6, and this hypothesis was confirmed using microdissection and whole‐chromosome painting. Recent cytogenetic and bioinformatic research also showed that N. vitripennis, Nasonia longicornis Darling, Nasonia giraulti Darling, Nasonia oneida Raychouhury et Desjardins, Muscidifurax uniraptor Kogan et Legner, and Trichomalopsis sarcophagae (Gahan) (all Pteromalidae) share the TTATTGGG telomeric motif with most other Chalcidoidea. Perspectives of the chromosome study of Pteromalidae s.l. are briefly discussed.

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Section: Taxonomic Implicationsmentioning

confidence: 99%

Comparative cytogenetics of the families Pteromalidae and Spalangiidae – a review

Gokhman

2024

Entomologia Exp Applicata

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Telenomus Haliday (Hymenoptera, Scelionidae) parasitizing Pentatomidae (Hemiptera) in the Palearctic region

Tortorici,

Orrù,

Timokhov

et al. 2024

JHR

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In recent years, the collection of eggs of stink bugs (Pentatomidae) has intensified because of the attention given to egg parasitoids in classical biological control strategies against Halyomorpha halys (Stål) in Europe. Several specimens belonging to the genus Telenomus Haliday emerged from field-collected pentatomid eggs. Taxonomic knowledge to date has not been sufficient to enable the research community to identify these specimens to species level. Three species of scelionid wasps (Scelionidae) associated with Pentatomidae, Telenomus gifuensis Ashmead, Telenomus truncatus (Nees von Esenbeck) and Telenomus turesis Walker, have been characterized on a morphological basis. A COI barcode analysis confirmed the genetic distance between the latter two species. An identification key to the three Telenomus species occurring in the Palearctic region associated with stink bugs is provided. Telenomus heydeni Mayr is here considered conspecific with Telenomus truncatus (Nees von Esenbeck).

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A checklist of Platygastridae and Scelionidae (Hymenoptera, Platygastroidea) of Iran

Minab

Rakhshani

Talamas

et al. 2023

J. Insect Biodivers. Syst

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Iranian species of the superfamily Platygastroidea (Hymenoptera) belonging to two families Platygastridae, (12 genera, 35 species) and Scelionidae (13 genera, 46 species), are reviewed. The recorded platygastroid species from Iran represent a very small assemblage of the world fauna, and certainly not the complete list from Iran. Except for a few recently described species, the others are found in many other countries as well. The known distribution for 27 species (77.1%) of Platygastridae of Iran is restricted to the Palaearctic region, while a smaller percentage was found in the Afrotropical (14.3%) and Nearctic (8.6%) regions. The distributions of 77.8% of Iranian scelionids are strictly Palaearctic, while the remaining scelionids were found also in the Nearctic (11.1%), Oriental (11.1%), Afrotropical (8.9%), Australasian (2.2%) and Neotropic regions (2.2%). Considering the sporadic treatment of platygastroids in Iran, it is evident that major parts of the country, including the eastern third, remain unexplored.

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Karyotypes of four species of the genus Telenomus Haliday, 1833 (Hymenoptera: Scelionidae)

Cited by 3 publications

References 8 publications

Comparative cytogenetics of the families Pteromalidae and Spalangiidae – a review

Comparative cytogenetics of the families Pteromalidae and Spalangiidae – a review

Telenomus Haliday (Hymenoptera, Scelionidae) parasitizing Pentatomidae (Hemiptera) in the Palearctic region

A checklist of Platygastridae and Scelionidae (Hymenoptera, Platygastroidea) of Iran

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