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

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 =...

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Autores principales: Stoianova, Desislava, Grozeva, Snejana, Simov, Nikolay, Kuznetsova, Valentina
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Pensoft Publishers 2015
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4722919/
https://www.ncbi.nlm.nih.gov/pubmed/26807038
http://dx.doi.org/10.3897/zookeys.538.6722
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author Stoianova, Desislava
Grozeva, Snejana
Simov, Nikolay
Kuznetsova, Valentina
author_facet Stoianova, Desislava
Grozeva, Snejana
Simov, Nikolay
Kuznetsova, Valentina
author_sort Stoianova, Desislava
collection PubMed
description 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+X(1)X(2)Y) 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.
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spelling pubmed-47229192016-01-22 Achiasmate male meiosis in two Cymatia species (Hemiptera, Heteroptera, Corixidae) Stoianova, Desislava Grozeva, Snejana Simov, Nikolay Kuznetsova, Valentina Zookeys Research Article 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+X(1)X(2)Y) 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. Pensoft Publishers 2015-11-19 /pmc/articles/PMC4722919/ /pubmed/26807038 http://dx.doi.org/10.3897/zookeys.538.6722 Text en Desislava Stoianova, Snejana Grozeva, Nikolay Simov, Valentina Kuznetsova http://creativecommons.org/licenses/by/4.0 This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Stoianova, Desislava
Grozeva, Snejana
Simov, Nikolay
Kuznetsova, Valentina
Achiasmate male meiosis in two Cymatia species (Hemiptera, Heteroptera, Corixidae)
title Achiasmate male meiosis in two Cymatia species (Hemiptera, Heteroptera, Corixidae)
title_full Achiasmate male meiosis in two Cymatia species (Hemiptera, Heteroptera, Corixidae)
title_fullStr Achiasmate male meiosis in two Cymatia species (Hemiptera, Heteroptera, Corixidae)
title_full_unstemmed Achiasmate male meiosis in two Cymatia species (Hemiptera, Heteroptera, Corixidae)
title_short Achiasmate male meiosis in two Cymatia species (Hemiptera, Heteroptera, Corixidae)
title_sort achiasmate male meiosis in two cymatia species (hemiptera, heteroptera, corixidae)
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4722919/
https://www.ncbi.nlm.nih.gov/pubmed/26807038
http://dx.doi.org/10.3897/zookeys.538.6722
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AT simovnikolay achiasmatemalemeiosisintwocymatiaspecieshemipteraheteropteracorixidae
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