Host Plant Adaptation in Cactophilic Species of the Drosophila buzzatii Cluster: Fitness and Transcriptomics

Host plant shifts in herbivorous insects often involve facing new environments that may speed up the evolution of oviposition behavior, performance-related traits, morphology, and, incidentally, reproductive isolation. In the genus Drosophila, cactophilic species of the repleta group include emblema...

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Detalles Bibliográficos
Publicado: 2019
Materias:
alkaloids
developmental instability
differential gene expression
host plant shifts
mating success
Molecular adaptation and selection
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00221503_v110_n1_p46_Hasson
http://hdl.handle.net/20.500.12110/paper_00221503_v110_n1_p46_Hasson
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id paper:paper_00221503_v110_n1_p46_Hasson
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spelling paper:paper_00221503_v110_n1_p46_Hasson2023-06-08T14:46:40Z Host Plant Adaptation in Cactophilic Species of the Drosophila buzzatii Cluster: Fitness and Transcriptomics alkaloids developmental instability differential gene expression host plant shifts mating success Molecular adaptation and selection Host plant shifts in herbivorous insects often involve facing new environments that may speed up the evolution of oviposition behavior, performance-related traits, morphology, and, incidentally, reproductive isolation. In the genus Drosophila, cactophilic species of the repleta group include emblematic species in the study of the evolution of host plant utilization. The South American D. buzzatii and its sibling D. koepferae are a model system for the study of differential host plant use. Although these species exhibit a certain degree of niche overlap, the former breeds primarily on decaying cladodes of Opuntia cacti while D. koepferae main hosts are columnar cacti of the genus Trichocereus. Opuntia sulphurea and Trichocereus terscheckii are among the main hosts in nature. These cacti differ in ecological (spatial and temporal predictability) and chemical characteristics. Particularly relevant is the presence of toxic alkaloids in T. terscheckii. Studies of the effects of these cacti and alkaloids revealed the remarkable impact on oviposition behavior, viability, developmental time, wing morphology, mating success, and developmental stability in both species. Recent whole-genome expression studies showed that expression profiles are massively affected by the rearing cactus, and that the presence of alkaloids is the main factor modulating gene expression in D. buzzatii. Functional enrichment analysis indicated that differentially expressed genes are related to detoxification processes and stress response - though genes involved in development are an important part of the transcriptomic response. The implications of our studies in the evolution of host plant use in the repleta group are discussed. © The American Genetic Association 2018. 2019 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00221503_v110_n1_p46_Hasson http://hdl.handle.net/20.500.12110/paper_00221503_v110_n1_p46_Hasson
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic alkaloids
developmental instability
differential gene expression
host plant shifts
mating success
Molecular adaptation and selection
spellingShingle alkaloids
developmental instability
differential gene expression
host plant shifts
mating success
Molecular adaptation and selection
Host Plant Adaptation in Cactophilic Species of the Drosophila buzzatii Cluster: Fitness and Transcriptomics
topic_facet alkaloids
developmental instability
differential gene expression
host plant shifts
mating success
Molecular adaptation and selection
description Host plant shifts in herbivorous insects often involve facing new environments that may speed up the evolution of oviposition behavior, performance-related traits, morphology, and, incidentally, reproductive isolation. In the genus Drosophila, cactophilic species of the repleta group include emblematic species in the study of the evolution of host plant utilization. The South American D. buzzatii and its sibling D. koepferae are a model system for the study of differential host plant use. Although these species exhibit a certain degree of niche overlap, the former breeds primarily on decaying cladodes of Opuntia cacti while D. koepferae main hosts are columnar cacti of the genus Trichocereus. Opuntia sulphurea and Trichocereus terscheckii are among the main hosts in nature. These cacti differ in ecological (spatial and temporal predictability) and chemical characteristics. Particularly relevant is the presence of toxic alkaloids in T. terscheckii. Studies of the effects of these cacti and alkaloids revealed the remarkable impact on oviposition behavior, viability, developmental time, wing morphology, mating success, and developmental stability in both species. Recent whole-genome expression studies showed that expression profiles are massively affected by the rearing cactus, and that the presence of alkaloids is the main factor modulating gene expression in D. buzzatii. Functional enrichment analysis indicated that differentially expressed genes are related to detoxification processes and stress response - though genes involved in development are an important part of the transcriptomic response. The implications of our studies in the evolution of host plant use in the repleta group are discussed. © The American Genetic Association 2018.
title Host Plant Adaptation in Cactophilic Species of the Drosophila buzzatii Cluster: Fitness and Transcriptomics
title_short Host Plant Adaptation in Cactophilic Species of the Drosophila buzzatii Cluster: Fitness and Transcriptomics
title_full Host Plant Adaptation in Cactophilic Species of the Drosophila buzzatii Cluster: Fitness and Transcriptomics
title_fullStr Host Plant Adaptation in Cactophilic Species of the Drosophila buzzatii Cluster: Fitness and Transcriptomics
title_full_unstemmed Host Plant Adaptation in Cactophilic Species of the Drosophila buzzatii Cluster: Fitness and Transcriptomics
title_sort host plant adaptation in cactophilic species of the drosophila buzzatii cluster: fitness and transcriptomics
publishDate 2019
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00221503_v110_n1_p46_Hasson
http://hdl.handle.net/20.500.12110/paper_00221503_v110_n1_p46_Hasson
_version_ 1768544069697404928

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