Consulta: subjectFacets:"Host shift"
Registros recuperados: 3
Data/hora: 10/06/2024 05:38:51

A global phylogeny of leafmining Ectoedemia moths (Lepidoptera: Nepticulidae): exploring host plant family shifts and allopatry as drivers of speciation
Provedor de dados: Naturalis Digital Academic Repository
Autores: Doorenweerd, C.; Nieukerken, E.J. van; Menken, S.B.J.
Background: Host association patterns in Ectoedemia (Lepidoptera: Nepticulidae) are also encountered in other insect groups with intimate plant relationships, including a high degree of monophagy, a preference for ecologically dominant plant families (e.g. Fagaceae, Rosaceae, Salicaceae, and Betulaceae) and a tendency for related insect species to feed on related host plant species. The evolutionary processes underlying these patterns are only partly understood, we therefore assessed the role of allopatry and host plant family shifts in speciation within Ectoedemia. Methodology: Six nuclear and mitochondrial DNA markers with a total aligned length of 3692 base pairs were used to infer phylogenetic relationships among 92 species belonging to the subgenus...
Tipo: Article / Letter to the editor
Palavras-chave: Ectoedemia; Moths; Nepticulidae; Plant relationships; Host shift; Leafminers.
Ano: 2015
URL: http://www.repository.naturalis.nl/record/648511

A new leafminer on grapevine and Rhoicissus (Vitaceae) in South Africa within an expanded generic concept of Holocacista (Insecta, Lepidoptera, Heliozelidae)
Provedor de dados: Naturalis Digital Academic Repository
Autores: Nieukerken, E.J. van; Geertsema, H.
A grapevine leafminer found recently in table grape orchards and vineyards in the Paarl region (Western Cape, South Africa) is described as Holocacista capensis sp. n. It has also been found on native Rhoicissus digitata and bred on that species in the laboratory. It is closely related to Holocacista salutans (Meyrick, 1921), comb. n. (from Antispila), described from Durban in KwaZulu-Natal, but widespread in southern Africa and a native leafminer of various Vitaceae: Rhoicissus tomentosa, R. digitata, R. tridentata and Cissus cornifolia. Holocacista capensis has been found on Vitis vinifera both in Gauteng and Western Cape, the earliest record being from 1950 in Pretoria. The initial host shift from native Vitaceae to Vitis must have occurred much...
Tipo: Article / Letter to the editor
Palavras-chave: Host shift; Leafminers; Vitaceae; Viticulture; Table grapes; Rhoicissus; Cissus; DNA barcode; Genitalia; Holocacista; Antispilina; Antispila; Afrotropics; South Africa; Zimbabwe; India.
Ano: 2015
URL: http://www.repository.naturalis.nl/record/648754

How specialists can be generalists: resolving the "parasite paradox" and implications for emerging infectious disease
Provedor de dados: Revista Brasileira de Zoologia
Autores: Agosta,Salvatore J.; Janz,Niklas; Brooks,Daniel R.
The parasite paradox arises from the dual observations that parasites (broadly construed, including phytophagous insects) are resource specialists with restricted host ranges, and yet shifts onto relatively unrelated hosts are common in the phylogenetic diversification of parasite lineages and directly observable in ecological time. We synthesize the emerging solution to this paradox: phenotypic flexibility and phylogenetic conservatism in traits related to resource use, grouped under the term ecological fitting, provide substantial opportunities for rapid host switching in changing environments, in the absence of the evolution of novel host-utilization capabilities. We discuss mechanisms behind ecological fitting, its implications for defining specialists...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Climate change; Coevolution; Ecological fitting; Host shift; Plant-insect interactions; Sloppy fitness.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000200001