Artículo
Bridging the cytogenetic gap in Trichoptera (Insecta): first karyotypic data on Neotropical species and insights into chromosomal evolution in caddisflies
Lovaglio Diez, M.; Bressa, Maria Jose
; Rodríguez Gil, Sergio Gustavo
; Papeschi, Alba Graciela
; Sganga, Julieta Valeria
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Fecha de publicación:
11/2023
Editorial:
Wiley Blackwell Publishing, Inc
Revista:
Biological Journal of The Linnean Society
ISSN:
0024-4066
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Trichoptera are a diverse group of insects with aerial adults and aquatic immature stages. Despite their importance in freshwater environments, fundamental aspects of their biology are unknown, and no chromosomal studies have been performed in Neotropical species. The aim of this study was to provide the first cytogenetic analysis of four Trichoptera species from the Neotropics. We analysed the meiotic development and chromosome behaviour in Smicridea (Rhyacophylax) pampeana Flint (Annulipalpia: Hydropsychidae), Marilia flexuosa Ulmer (Integripalpia: Odontoceridae), Triplectides misionensis Holzenthal (Integripalpia: Leptoceridae), and Grumicha grumicha (Vallot) (Integripalpia: Sericostomatidae) by conventional cytogenetic procedures. The chromosome numbers are 2n = 31/32 (female/male) in S. (R.) pampeana, 2n = 57 (female) in M. flexuosa, 2n = 47 (female) in T. misionensis, and 2n = 35 (female) in G. grumicha. All four species have a simple sex chromosome system Z/ZZ (female/male). Females are the heterogametic sex, and their meiosis is achiasmatic. Our results together with available cytogenetic data provide more information on the karyology of Trichoptera and contribute to the current scientific knowledge of the possible mechanisms involved in chromosomal evolution. Based on all the evidence, we propose the existence of possible positive relationships between biological traits, ecological strategies, and cytogenetic features in Trichoptera.
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Identificadores
Colecciones
Articulos(CEPAVE)
Articulos de CENTRO DE EST.PARASITOL.Y DE VECTORES (I)
Articulos de CENTRO DE EST.PARASITOL.Y DE VECTORES (I)
Citación
Lovaglio Diez, M.; Bressa, Maria Jose; Rodríguez Gil, Sergio Gustavo; Papeschi, Alba Graciela; Sganga, Julieta Valeria; Bridging the cytogenetic gap in Trichoptera (Insecta): first karyotypic data on Neotropical species and insights into chromosomal evolution in caddisflies; Wiley Blackwell Publishing, Inc; Biological Journal of The Linnean Society; XX; 11-2023; 1-14
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