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https://www.readbyqxmd.com/read/28106948/genetic-differentiation-associated-with-host-plants-and-geography-among-six-widespread-species-of-south-american-blepharoneura-fruit-flies-tephritidae
#1
Kristina Ottens, Isaac S Winkler, Matthew L Lewis, Sonja J Scheffer, Géssica A Gomes-Costa, Marty A Condon, Andrew A Forbes
Tropical herbivorous insects are astonishingly diverse and many are highly host-specific. Much evidence suggests that herbivorous insect diversity is a function of host-plant diversity; yet, the diversity of some lineages exceeds the diversity of plants. Although most species of herbivorous fruit flies in the Neotropical genus Blepharoneura are strongly host-specific (they deposit their eggs in a single host plant species and flower sex), some species are collected from multiple hosts or flowers and these may represent examples of lineages that are diversifying via changes in host use...
January 20, 2017: Journal of Evolutionary Biology
https://www.readbyqxmd.com/read/28093669/genetic-diversity-and-population-structure-of-anastrepha-striata-diptera-tephritidae-in-three-natural-regions-of-southwestern-colombia-using-mitochondrial-sequences
#2
Jenny Johana Gallo-Franco, Sandra Marcela Velasco-Cuervo, Elkin Aguirre-Ramirez, Ranulfo González Obando, Nancy Soraya Carrejo, Nelson Toro-Perea
Anastrepha striata is widely distributed across the Americas and is a pest of economically important crops, especially crops of the Myrtaceae family. Insect population structures can be influenced by the presence of physical barriers or characteristics associated with habitat differences. This study evaluated the effect of the Western Andes on the population structure of A. striata. Individuals were collected from Psidium guajava fruits from three natural regions of southwestern Colombia (Pacific Coast, mountainous region and the inter-Andean valley of the Cauca River)...
January 16, 2017: Genetica
https://www.readbyqxmd.com/read/28087647/an-additional-phytosanitary-cold-treatment-against-ceratitis-capitata-diptera-tephritidae-in-oroblanco-citrus-fruit
#3
Yoav Gazit, Roy Kaspi
For 'Oroblanco' ('Sweetie'), the sweet seedless pummelo-grapefruit hybrid, when exported from Israel to Japan, the standard cold treatment against Ceratitis capitata (Wied.) (Diptera: Tephritidae) is conducted at ≤ 1.5 °C, for 16 d. In recent years, the transportation means of exported citrus was changed from reefer vessels to individual refrigerated containers, where the fruit bulk is relatively small and may be exposed to temperature fluctuations and to the risk of chilling injuries. To reduce this risk, Israel proposed to Japan to increase the treatment temperature and extend its duration to 2...
January 12, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28075346/automated-surveillance-of-fruit-flies
#4
Ilyas Potamitis, Iraklis Rigakis, Nicolaos-Alexandros Tatlas
Insects of the Diptera order of the Tephritidae family cause costly, annual crop losses worldwide. Monitoring traps are important components of integrated pest management programs used against fruit flies. Here we report the modification of typical, low-cost plastic traps for fruit flies by adding the necessary optoelectronic sensors to monitor the entrance of the trap in order to detect, time-stamp, GPS tag, and identify the species of incoming insects from the optoacoustic spectrum analysis of their wingbeat...
January 8, 2017: Sensors
https://www.readbyqxmd.com/read/28073981/effect-of-resin-ducts-and-sap-content-on-infestation-and-development-of-immature-stages-of-anastrepha-obliqua-and-anastrepha-ludens-diptera-tephritidae-in-four-mango-sapindales-anacardiaceae-cultivars
#5
Larissa Guillén, Ricardo Adaime, Andrea Birke, Olinda Velázquez, Guillermo Angeles, Fernando Ortega, Eliel Ruíz, Martín Aluja
We determined the influence of resin ducts, sap content, and fruit physicochemical features of four mango cultivars (Criollo, Manila, Ataulfo, and Tommy Atkins) on their susceptibility to the attack of the two most pestiferous fruit fly species infesting mangoes in Mexico: Anastrepha ludens (Loew) and Anastrepha obliqua (Macquart). We performed three studies: 1) analysis of resin ducts in mango fruit exocarp to determine the density and area occupied by resin ducts in each mango cultivar, 2) assessment of mango physicochemical features including fruit sap content, and 3) a forced infestation trial under field conditions using enclosed fruit-bearing branches to expose mangoes to gravid A...
January 10, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28073977/the-effects-of-a-modified-hot-water-treatment-on-anastrepha-ludens-diptera-tephritidae-infested-mango
#6
Emilio Hernández, Marysol Aceituno-Medina, Jorge Toledo, Bigail Bravo, José Caro-Corrales, Pablo Montoya, Robert Mangan
The Mexican fruit fly, Anastrepha ludens (Loew), is a quarantine pest in mango (Mangifera indica L.) that can be controlled by using a hot water treatment (HWT). This treatment is normally followed by a 30-min hydrocooling (HYC) process that reduces the negative effects that the treatment has on fruit quality. However, if hot water-treated fruits are immediately immersed in water at 21 °C, the survival rate of third-instar A. ludens may be increased. The current approved treatment protocol states that if HYC is used, then treated fruit should undergo an additional 10-min HWT or on platform for 30 min before HYC...
January 10, 2017: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28054305/mexican-fruit-fly-populations-in-the-semi-arid-highlands-of-the-sierra-madre-oriental-in-northeastern-mexico
#7
V Vanoye-Eligio, A Mora-Olivo, G Gaona-García, F Reyes-Zepeda, M Rocandio-Rodríguez
The Mexican fruit fly, Anastrepha ludens Loew (Diptera: Tephritidae), is one of the most important pests of citrus in Mexico. We report the results of an analysis of A. ludens populations that inhabit the semi-arid highlands of the Sierra Madre Oriental in northeastern Mexico. This study aimed to provide information on population fluctuation of A. ludens and how it relates to climate variables, as well as insights into habitat and native parasitoids. Population peaked in the period July-November when ripe fruits of the wild host, Casimiroa pubescens Ramírez, were available...
January 4, 2017: Neotropical Entomology
https://www.readbyqxmd.com/read/28039426/yeast-an-overlooked-component-of-bactrocera-tryoni-diptera-tephritidae-larval-gut-microbiota
#8
Ania T Deutscher, Olivia L Reynolds, Toni A Chapman
Yeasts, often in hydrolyzed form, are key ingredients in the larval and adult diets of tephritid fruit fly colonies. However, very little is known about the presence or role of yeasts in the diets of tephritid fruit flies in nature. Previous studies have identified bacteria but not detected yeasts in the gut of Queensland fruit fly, Bactrocera tryoni (Froggatt), one of Australia's most economically damaging insect pests of horticultural crops and of significant biosecurity concern domestically and internationally...
December 29, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28028169/phytosanitary-treatments-against-bactrocera-dorsalis-diptera-tephritidae-current-situation-and-future-prospects
#9
REVIEW
Toshiyuki Dohino, Guy J Hallman, Timothy G Grout, Anthony R Clarke, Peter A Follett, Domingos R Cugala, Duong Minh Tu, Wayan Murdita, Emilio Hernandez, Rui Pereira, Scott W Myers
Bactrocera dorsalis (Hendel) (Diptera: Tephritidae) is arguably the most important tephritid attacking fruits after Ceratitis capitata (Wiedemann) (Diptera: Tephritidae). In 2003 it was found in Africa and quickly spread to most of the sub-Saharan part of the continent, destroying fruits and creating regulatory barriers to their export. The insect is causing new nutritional and economic losses across Africa, as well as the losses it has caused for decades in infested areas of Asia, New Guinea, and Hawaii. This new panorama represents a challenge for fruit exportation from Africa...
December 27, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28028089/wolbachia-in-parasitoids-attacking-native-european-and-introduced-eastern-cherry-fruit-flies-in-europe
#10
Hannes Schuler, Peter Kern, Wolfgang Arthofer, Heidrun Vogt, Maximilian Fischer, Christian Stauffer, Markus Riegler
The eastern cherry fruit fly, Rhagoletis cingulata Loew (Diptera: Tephritidae), is an economically important pest of cherries in North America. In 1983 it was first reported in Europe where it shares its ecological niche with the native European cherry fruit fly, Rhagoletis cerasi L. (Diptera: Tephritidae). Their coexistence in Europe led to the recent horizontal transmission of the Wolbachia strain wCer1 from R. cerasi to R. cingulata Horizontal Wolbachia transmission is mediated by either sharing of ecological niches or by interacting species such as parasitoids...
December 2016: Environmental Entomology
https://www.readbyqxmd.com/read/28025314/cucumber-lure-trapping-of-zeugodacus-cucurbitae-diptera-tephritidae-in-hawaii-and-taiwan-longevity-and-nontargets-captures
#11
Eric B Jang, Lori A F N Carvalho, Chung-Chien Chen, Matthew S Siderhurst
The melon fly, Zeugodacus cucurbitae (Coquillett), is a serious pest of tropical horticulture, causing damage to cucurbits, tree fruits, and fruiting vegetables. Melon flies are especially attractive to freshly sliced cucumber, and this has led to the identification of a nine-compound kairomone lure that can be used to trap both female and male flies. In this study, a seven-compound lure, containing (Z)-6-nonenal, (Z)-6-nonen-1-ol, 1-octen-3-ol, (E,Z)-2,6-nonadienal, (E)-2-nonenal, hexanal, and 1-hexanol, was formulated into PVC plugs (100 or 300 mg/plug) for field testing in wet traps...
December 26, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28011689/performance-of-a-genetically-modified-strain-of-the-mediterranean-fruit-fly-diptera-tephritidae-for-area-wide-integrated-pest-management-with-the-sterile-insect-technique
#12
Edwin M Ramírez-Santos, Pedro Rendón, Lorena Ruiz-Montoya, Jorge Toledo, Pablo Liedo
The genetically modified strain of Ceratitis capitata (Wiedemann) VIENNA 8 1260 has two morphological markers that exhibit fluorescence in body and sperm. To assess the feasibility of its use in area-wide integrated pest management (AW-IPM) programs using the sterile insect technique, its rearing performance and quality control profile under small, medium, and large scales was evaluated, as well as in field cages. The VIENNA 8 1260 strain had a lower yield than the control strains, VIENNA 8 with D53 inversion (VIENNA 8) and without D53 inversion (VIENNA 8 D53-)...
December 23, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/28003447/sensory-specificity-and-speciation-a-potential-neuronal-pathway-for-host-fruit-odour-discrimination-in-rhagoletis-pomonella
#13
Cheyenne Tait, Srishti Batra, Sree Subha Ramaswamy, Jeffrey L Feder, Shannon B Olsson
Behavioural changes in habitat or mate choice can trigger population divergence, leading to speciation. However, little is known about the neurological bases for such changes. Rhagoletis pomonella (Diptera: Tephritidae) is a model for ecological speciation via host plant shifts. Within the past 180 years, Rhagoletis flies infesting hawthorn (Crataegus spp.) shifted to attack domesticated apple (Malus pumila). The two populations differ in their olfactory preferences for apple versus hawthorn fruit. Here, we looked for patterns of sensory organization that may have contributed to this shift by characterizing the morphology, specificity and distribution of olfactory sensory neurons (OSNs) on the antennae of Rhagoletis responding to host fruit and non-host volatiles...
December 28, 2016: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/27929126/genetic-diversity-and-population-structure-in-bactrocera-correcta-diptera-tephritidae-inferred-from-mtdna-cox1-and-microsatellite-markers
#14
Yu-Jia Qin, Nopparat Buahom, Matthew N Krosch, Yu Du, Yi Wu, Anna R Malacrida, Yu-Liang Deng, Jia-Qi Liu, Xiao-Long Jiang, Zhi-Hong Li
Bactrocera correcta is one of the most destructive pests of horticultural crops in tropical and subtropical regions. Despite the economic risk, the population genetics of this pest have remained relatively unexplored. This study explores population genetic structure and contemporary gene flow in B. correcta in Chinese Yunnan Province and attempts to place observed patterns within the broader geographical context of the species' total range. Based on combined data from mtDNA cox1 sequences and 12 microsatellite loci obtained from 793 individuals located in 7 countries, overall genetic structuring was low...
December 8, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27914738/wolbachia-strains-in-cryptic-species-of-the-anastrepha-fraterculus-complex-diptera-tephritidae-along-the-neotropical-region
#15
Leandro F Prezotto, André L P Perondini, Vicente Hernández-Ortiz, Celso L Marino, Denise Selivon
Infection by Wolbachia was described previously in eleven species of Anastrepha fruit flies some of which are important pests of fruticulture. One such species is the nominal Anastrepha fraterculus, the South American fruit fly, which actually comprises a complex of cryptic species. The suggestions of using Wolbachia for the control of these pest species, make imperative a more precise characterization of the existing strains of the bacteria. In this study, population samples of the A. fraterculus complex from Brazil, Argentina, Peru, Ecuador, Colombia, Guatemala and Mexico were analyzed for Wolbachia infection...
November 24, 2016: Systematic and Applied Microbiology
https://www.readbyqxmd.com/read/27871341/functional-analysis-of-a-nf-%C3%AE%C2%BAb-transcription-factor-in-the-immune-defense-of-oriental-fruit-fly-bactrocera-dorsalis-hendel-diptera-tephritidae
#16
Z Shi, H Liang, Y Hou
Although some novel antimicrobial peptides (AMP) have been successfully isolated from Bactrocera dorsalis Hendel, the mechanisms underlying the induction of these peptides are still elusive. The homolog of NF-κB transcription factor Relish, designated as BdRelish, was cloned from B. dorsalis. The full length cDNA of BdRelish is 3954 bp with an open reading frame that encodes 1013 amino acids. Similar to Drosophila Relish and the mammalian p100, it is a compound protein containing a conserved Rel homology domain, an IPT (Ig-like, plexins, transcription factors) domain and an IκB-like domain (four ankyrin repeats), the nuclear localization signal RKRRR is also detected at the residues 449-453, suggesting that it has homology to Relish and it is a member of the Rel family of transcription activator proteins...
November 22, 2016: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/27860165/construction-implementation-and-testing-of-an-image-identification-system-using-computer-vision-methods-for-fruit-flies-with-economic-importance-diptera-tephritidae
#17
Jiang-Ning Wang, Xiao-Lin Chen, Xin-Wen Hou, Li-Bing Zhou, Chao-Dong Zhu, Li-Qiang Ji
BACKGROUND: Many species of Tephritidae are damaging to fruit, which might negatively impact international fruit trade. Automatic or semi-automatic identification of fruit flies are greatly needed for diagnosing causes of damage and quarantine protocols for economically relevant insects. RESULTS: A fruit fly image identification system named AFIS1.0 has been developed using 74 species belonging to six genera, which include the majority of pests in the Tephritidae...
November 17, 2016: Pest Management Science
https://www.readbyqxmd.com/read/27847335/patterns-of-inner-chorion-structure-in-anastrepha-diptera-tephritidae-eggs
#18
Julia V A Figueiredo, André L P Perondini, Denise Selivon
The inner chorion structure of Anastrepha eggs from 16 species of various infrageneric taxonomic groups is described by scanning and transmission electron microscopy. The layers of the chorion, the outer egg membrane, are structurally similar. Furthermore, an additional trabecular layer (ATL) that exists in some species, together with other characteristics, facilitates the recognition of four patterns of chorion structuring: Pattern I, in which the ATL layer is absent, is found in Anastrephaamita, the Anastrepha fraterculus complex, Anastrepha obliqua, Anastrepha sororcula, Anastrephasuspensa and Anastrephazenildae (fraterculus group), and Anastrephabistrigata and Anastrephastriata (striata group); Pattern II in Anastrephaserpentina (serpentina group), Anastrephagrandis (grandis group) and Anastrephapseudoparallela (pseudoparallela group), in which the ATL presents large open spaces with pillars; Pattern III, found in Anastrephaconsobrina (pseudoparallela group), in which the ATL is composed of round cavities; and Pattern IV, found in Anastrephaalveata and Anastrephapickeli (spatulata group), where the large ATL cavities are reticulated...
December 22, 2016: Arthropod Structure & Development
https://www.readbyqxmd.com/read/27845146/do-thermal-tolerances-and-rapid-thermal-responses-contribute-to-the-invasion-potential-of-bactrocera-dorsalis-diptera-tephritidae
#19
Welma Pieterse, John S Terblanche, Pia Addison
Bactrocera dorsalis (Hendel) (Diptera: Tephritidae) has shown remarkable range expansion over the past 10years and invaded several new continents including Africa. Here we report results of a detailed assessment of acute high and low temperature survival ability and the plasticity thereof, to test the hypothesis that traits of the thermal niche have contributed to the species' invasion ability. We also assess life-stage-related variation of thermal tolerances to determine potential stage-related environmental sensitivity...
November 12, 2016: Journal of Insect Physiology
https://www.readbyqxmd.com/read/27812024/the-first-complete-mitochondrial-genome-of-dacus-longicornis-diptera-tephritidae-using-next-generation-sequencing-and-mitochondrial-genome-phylogeny-of-dacini-tribe
#20
Fan Jiang, Xubin Pan, Xuankun Li, Yanxue Yu, Junhua Zhang, Hongshan Jiang, Liduo Dou, Shuifang Zhu
The genus Dacus is one of the most economically important tephritid fruit flies. The first complete mitochondrial genome (mitogenome) of Dacus species - D. longicornis was sequenced by next-generation sequencing in order to develop the mitogenome data for this genus. The circular 16,253 bp mitogenome is the typical set and arrangement of 37 genes present in the ancestral insect. The mitogenome data of D. longicornis was compared to all the published homologous sequences of other tephritid species. We discovered the subgenera Bactrocera, Daculus and Tetradacus differed from the subgenus Zeugodacus, the genera Dacus, Ceratitis and Procecidochares in the possession of TA instead of TAA stop codon for COI gene...
November 4, 2016: Scientific Reports
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