Sensibilidade e tolerância térmica da mosca-das-frutas Anastrepha sp. 1 aff. fraterculus (Diptera: Tephritidae)

Saruhashi, Stefane

doi:10.11606/d.41.2020.tde-30112020-100244

Cited by 1 publication

(1 citation statement)

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“…Nonetheless, since species ranges can be restricted by purely historical reasons (i.e., time for dispersal, presence of biogeographical barriers), further laboratorial investigations of their thermal physiological tolerance are needed to set the true climatic boundaries for their survival, as has recently been achieved for A. sp.1 (Saruhashi, 2019), and other species of fruit flies (Gutierrez et al, 2021). Given the differences in the climatic niche of A. sp.1 in relation to the other two species, it is necessary to point out that in a scenario of climate change, global warming can profoundly impact the geographic occurrence of the AF complex in Brazil, for example, promoting the expansion of A. sp.2 and A. sp.3 on the Inland plateau.…”

Section: Bioclimatic Analysismentioning

confidence: 99%

Genetical, Morphological, Behavioral, and Ecological Traits Support the Existence of Three Brazilian Species of the Anastrepha fraterculus Complex of Cryptic Species

et al. 2022

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Within the Neotropical genus Anastrepha, the nominal species Anastrepha fraterculus is widely distributed from Mexico through northern Argentina. Currently it is believed to comprises a complex of at least eight cryptic species—known as the Anastrepha fraterculus complex (AF complex)—three of which occur in Brazil: A. sp.1 aff. fraterculus, A. sp.2 aff. fraterculus, and A. sp.3 aff. fraterculus. In this study, we present the results of a broad integrated analysis of multiple biological attributes in samples of the three species collected in sympatric areas. Analyses of the mitotic chromosomes confirm that all of them differ in sex chromosomes, and that the relative frequency of the distinct karyotypes is associated with variation in altitude. In these sympatric areas, a single female hybrid karyotype was detected within a significant sample of individuals. Population samples were analyzed for the ribosomal transcribed spacer ITS1, confirming that the three species have specific sequence types. Observations of reproductive behavior under laboratory conditions revealed that A. sp.1 and A. sp.2 mate early in the morning, while A. sp.3 mates in the middle of the day. A bimodal distribution of mating time was observed in the laboratory for hybrids, obtained between A. sp.1 and A. sp.3. In a mating choice experiment, most of the mating pairs were homospecific. In addition, through a list of the most frequent hosts associated with geographical occurrence, a bioclimatic model of their potential distribution was generated. The set of data allowed for the construction of explanatory hypothesis about the observed geographical pattern and the differential use of host fruits. Morphometric analyses of wings clearly demonstrated differences among the three species, for both males and females. Based on a wing image of the A. fraterculus (Wiedemann, 1830) type specimen, the morphometric analysis indicated that the type specimen would correspond to a male of A. sp.2 aff. fraterculus. The information provided by this report is not only useful for taxonomic purposes, but also reveals aspects to be considered in any reconstruction of an evolutionary scenario of the Anastrepha fraterculus complex.

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Section: Bioclimatic Analysismentioning

confidence: 99%

Genetical, Morphological, Behavioral, and Ecological Traits Support the Existence of Three Brazilian Species of the Anastrepha fraterculus Complex of Cryptic Species

et al. 2022

View full text Add to dashboard Cite

show abstract

Sensibilidade e tolerância térmica da mosca-das-frutas Anastrepha sp. 1 aff. fraterculus (Diptera: Tephritidae)

Abstract: Thermal sensitivity and thermal tolerance of Anastrepha sp.1 aff. fraterculus

Cited by 1 publication

References 81 publications

Genetical, Morphological, Behavioral, and Ecological Traits Support the Existence of Three Brazilian Species of the Anastrepha fraterculus Complex of Cryptic Species

Genetical, Morphological, Behavioral, and Ecological Traits Support the Existence of Three Brazilian Species of the Anastrepha fraterculus Complex of Cryptic Species

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