Skip to Content

Ахиазматический мейоз у самцов: распространение и роль для понимания родственных отношений в надсемействе Corixoidea (Hemiptera, Heteroptera)

ID: 2016-09-4353-T-9511
Тезис
1) Институт биоразнообразия и экосистемных исследований, София, Болгария; 2) Зоологический институт, Санкт - Петербург, Россия; 3) Национальный музей естественной истории, БАН, София, Болгария

Achiasmatic male meiosis in Heteroptera is a characteristic of the higher taxa in family level. 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 Micronecta (Dichaetonecta) scholtzi (Fieber, 1860), M. (Micronecta) poweri (Douglas et Scott, 1869) and M. (Micronecta)griseola Horvath, 1899, as well in Cymatia rogenhoferi (Fieber) and C. coleoptrata (Fabricius) (Corixoidae).

The male meiosis of Micronecta and Cymatia species studied is achiasmate and of an alignment type in males. It is suggested that achiasmatic male meiosis and lack of m-chromosomes are cytogenetic features sepa¬rating the family Micronectidae from the family Corixidae among the superfamily Corixoidea within the infraorder Nepomorpha. Cytogenetic and some morphological diagnostic characters separating Cymatia Flor from the rest of Corixidae are discussed. It seems plausible that achiasmatic male meiosis has emerged in Heteroptera more than once during their evolution and can be used for understanding the relationships in the superfamily Corixoidea and infraorder Nepomorpha as a whole.

This study was financially supported by the grant from the Russian Science Foundation no. 14-14-00541.

Ключевые слова

ахиазматический тип мейоза у самцов, Corixoidea, Heteroptera
0
Ваша оценка: Нет



Оптимальный хостинг для Drupal, Wordpress, Joomla, Битрикс и других CMS, быстрые и надежные сервера, круглосуточная техподдержка Яндекс.Метрика