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Stoianova D, Grozeva S, Simov N, et al. Achiasmate male meiosis in two Cymatia species (Hemiptera, Heteroptera, Corixidae). Zookeys. 2015;(538):95-104doi: 10.3897/zookeys.538.6722.
Stoianova, D., Grozeva, S., Simov, N., & Kuznetsova, V. (2015). Achiasmate male meiosis in two Cymatia species (Hemiptera, Heteroptera, Corixidae). ZooKeys, (538), 95-104. https://doi.org/10.3897/zookeys.538.6722
Stoianova, Desislava, et al. "Achiasmate male meiosis in two Cymatia species (Hemiptera, Heteroptera, Corixidae)." ZooKeys vol. ,538 (2015): 95-104. doi: https://doi.org/10.3897/zookeys.538.6722
Stoianova D, Grozeva S, Simov N, Kuznetsova V. Achiasmate male meiosis in two Cymatia species (Hemiptera, Heteroptera, Corixidae). Zookeys. 2015 Nov 19;(538):95-104. doi: 10.3897/zookeys.538.6722. eCollection 2015. PMID: 26807038; PMCID: PMC4722919.
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Zookeys. 2015 Nov 19;(538):95-104. doi: 10.3897/zookeys.538.6722. eCollection 2015.

Achiasmate male meiosis in two Cymatia species (Hemiptera, Heteroptera, Corixidae).

ZooKeys

Desislava Stoianova, Snejana Grozeva, Nikolay Simov, Valentina Kuznetsova

Affiliations

  1. Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, 1 Tsar Osvoboditel, Sofia 1000, Bulgaria.
  2. National museum of Natural History, Bulgarian Academy of Sciences, 1 Tsar Osvoboditel, Sofia 1000, Bulgaria.
  3. Zoological Institute, Russian Academy of Sciences, Universitetskaya nab. 1, St. Petersburg 199034, Russia.

PMID: 26807038 PMCID: PMC4722919 DOI: 10.3897/zookeys.538.6722

Abstract

The karyotype and male meiosis, with a particular focus on the presence or absence of chiasmata between the homologs, were studied in the water boatman species Cymatia rogenhoferi (Fieber) and Cymatia coleoptrata (Fabricius) (Corixidae, Cymatiainae). It is shown that the species have 2n = 33 (28A+2m+X1X2Y) and 2n = 24 (20A+2m+XY) respectively, post-reduction of sex chromosomes, and achiasmate meiosis of an alignment type in males. Cytogenetic and some morphological diagnostic characters separating Cymatia Flor from the rest of Corixidae are discussed.

Keywords: Corixoidea; Karyotype; Nepomorpha; m-chromosomes; morphology; sex chromosome post-reduction; spermatocyte meiosis

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