Colonization ability of two invasive weevils with different reproductive modes

The flightless weevils Naupactus leucoloma and Naupactu xanthographus (Coleoptera: Curculionidae: Naupactini), which are native to and partially co-distributed in South America, apparently have asexual and bisexual reproductive modes, respectively. We used two different molecular markers to elucidat...

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Detalles Bibliográficos
Autores principales:	Guzmán, Noelia, Lanteri, Analía Alicia, Confalonieri, Viviana
Formato:	Articulo
Lenguaje:	Inglés
Publicado:	2012
Materias:	Ciencias Naturales Apomictic parthenogenesis White-fringed weevil Fruit-tree weevil Niche modeling Landscape genetics Phylogeography
Acceso en línea:	http://sedici.unlp.edu.ar/handle/10915/134305
Aporte de:	SEDICI (UNLP) de Universidad Nacional de La Plata

id	I19-R120-10915-134305
record_format	dspace
institution	Universidad Nacional de La Plata
institution_str	I-19
repository_str	R-120
collection	SEDICI (UNLP)
language	Inglés
topic	Ciencias Naturales Apomictic parthenogenesis White-fringed weevil Fruit-tree weevil Niche modeling Landscape genetics Phylogeography
spellingShingle	Ciencias Naturales Apomictic parthenogenesis White-fringed weevil Fruit-tree weevil Niche modeling Landscape genetics Phylogeography Guzmán, Noelia Lanteri, Analía Alicia Confalonieri, Viviana Colonization ability of two invasive weevils with different reproductive modes
topic_facet	Ciencias Naturales Apomictic parthenogenesis White-fringed weevil Fruit-tree weevil Niche modeling Landscape genetics Phylogeography
description	The flightless weevils Naupactus leucoloma and Naupactu xanthographus (Coleoptera: Curculionidae: Naupactini), which are native to and partially co-distributed in South America, apparently have asexual and bisexual reproductive modes, respectively. We used two different molecular markers to elucidate the effects of these reproductive modes on the colonization ability and genetic variability of both species. First, we investigated the occurrence of clonal reproduction in the putative parthenogenetic species (i.e. significant bias in sex ratio) and second, whether parthenogenesis was associated with higher colonization ability and low levels of genetic variability in marginal environments compared with those of the bisexual species. We assessed the central and marginal areas of distribution of these species with ecological niche modeling that includes environmental variables and with landscape interpolation of molecular variability. Our results support the idea that parthenogenetic species are more successful than bisexual ones in colonizing new environments. N. leucoloma is most probably apomictic, and would have recently experienced significant population growth concomitant with an important geographic range expansion to distant areas with moderately suitable environmental conditions. On the other hand, the populations of the bisexual species, N. xanthographus, seem to have maintained fairly constant sizes, expanding its geographic distribution to locations close to the proposed ancestral area.
format	Articulo Articulo
author	Guzmán, Noelia Lanteri, Analía Alicia Confalonieri, Viviana
author_facet	Guzmán, Noelia Lanteri, Analía Alicia Confalonieri, Viviana
author_sort	Guzmán, Noelia
title	Colonization ability of two invasive weevils with different reproductive modes
title_short	Colonization ability of two invasive weevils with different reproductive modes
title_full	Colonization ability of two invasive weevils with different reproductive modes
title_fullStr	Colonization ability of two invasive weevils with different reproductive modes
title_full_unstemmed	Colonization ability of two invasive weevils with different reproductive modes
title_sort	colonization ability of two invasive weevils with different reproductive modes
publishDate	2012
url	http://sedici.unlp.edu.ar/handle/10915/134305
work_keys_str_mv	AT guzmannoelia colonizationabilityoftwoinvasiveweevilswithdifferentreproductivemodes AT lanterianaliaalicia colonizationabilityoftwoinvasiveweevilswithdifferentreproductivemodes AT confalonieriviviana colonizationabilityoftwoinvasiveweevilswithdifferentreproductivemodes
bdutipo_str	Repositorios
_version_	1764820454768377857

Colonization ability of two invasive weevils with different reproductive modes

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