scholarly journals Genomic Traces of the Fruit Fly Anastrepha obliqua Associated with Its Polyphagous Nature

Insects ◽  
2021 ◽  
Vol 12 (12) ◽  
pp. 1116
Author(s):  
Elkin Aguirre-Ramirez ◽  
Sandra Velasco-Cuervo ◽  
Nelson Toro-Perea

Anastrepha obliqua (Macquart) (Diptera: Tephritidae) is an important pest in the neotropical region. It is considered a polyphagous insect, meaning it infests plants of different taxonomic families and readily colonizes new host plants. The change to new hosts can lead to diversification and the formation of host races. Previous studies investigating the effect of host plants on population structure and selection in Anastrepha obliqua have focused on the use of data from the mitochondrial DNA sequence and microsatellite markers of nuclear DNA, and there are no analyses at the genomic level. To better understand this issue, we used a pooled restriction site-associated DNA sequencing (pooled RAD-seq) approach to assess genomic differentiation and population structure across sympatric populations of Anastrepha obliqua that infest three host plants—Spondias purpurea (red mombin), Mangifera indica (mango) of the family Anacardiaceae and Averrhoa carambola (carambola) of the family Oxalidaceae—in sympatric populations of the species Anastrepha obliqua of Inter-Andean Valley of the Cauca River in southwestern Colombia. Our results show genomic differentiation of populations from carambola compared to mango and red mombin populations, but the genetic structure was mainly established by geography rather than by the host plant. On the other hand, we identified 54 SNPs in 23 sequences significantly associated with the use of the host plant. Of these 23 sequences, we identified 17 candidate genes and nine protein families, of which four protein families are involved in the nutrition of these flies. Future studies should investigate the adaptive processes undergone by phytophagous insects in the Neotropics, using fruit flies as a model and state-of-the-art molecular tools.

2019 ◽  
Vol 24 (4) ◽  
pp. 529
Author(s):  
Mahran Zeity ◽  
Nagappa Srinivasa

Sixteen species of Tetranychoidea, 11 Tetranychidae and 5 Tenuipalpidae are reported in this study. Seven of them are recorded for the first time from Syria: Bryobia gigas, Oligonychus afrasiaticus, O. coniferarum, O. pratensis, Cenopalpus rubusi, Tenuipalpus cupressoides and T. punicae. New host plant records are also reported. Reinstatement of the genus Nuciforaella Vacante is discussed in this study. Detailed descriptions of immature stages and female of Nuciforaella nikitensis are given. A key to the known species of the family Tetranychidae from Syria is provided.


Zootaxa ◽  
2013 ◽  
Vol 3619 (2) ◽  
pp. 101-129 ◽  
Author(s):  
SHIGEKI KOBAYASHI ◽  
GUO-HUA HUANG ◽  
AKIHIRO NAKAMURA ◽  
TOSHIYA HIROWATARI

Four new leaf mining Oecophyllembiinae (Gracillariidae) species are described from Chinaand Japan: Metriochroa sym-plocosella sp. nov. (host plants: Symplocos anomala, S. sumuntia, Symplocaceae) from China, Guttigera schefflerella sp. nov. (host plant: Schefflera octophylla, Araliaceae), Eumetriochroa araliella sp. nov. (host plants: Dendropanax trifidus, Evodiopanax innovans, Eleutherococcus sciadophylloides and Fatsia japonica, Araliaceae) and Corythoxestis tricalysiel-la sp. nov. (host plant: Tricalysia dubia, Rubiaceae) from Japan. Corythoxestis sunosei (Kumata, 1998) is recorded from new host plants: Adina pilulifera and Mussaenda parviflora, Rubiaceae, from Japan. The female adult and pupal morphol-ogies, life history and host plant of the genus Guttigera are described for the first time. Pupae of seven species of four genera: Corythoxestis, Eumetriochroa, Guttigera, and Metriochroa, are described for the first time. We provide morpho-logical diagnostic differences between species and genera of Oecophyllembiinae and Phyllocnistis. Our preliminary data suggest that Oecophyllembiinae species have three valuable pupal diagnostic characters: 1) cocoon cutter with unique lat-eral processes or setae on the clypeus, 2) tergal spines with only a pair of dorsal setae, and 3) cremaster with more than two pairs of caudal processes, while Phyllocnistis species possess 1) cocoon cutter without lateral processes or setae on clypeus, 2) tergal spines with a pair of dorsal setae and dorsal hooks, and 3) cremaster with only a pair of caudal processes.


2004 ◽  
Vol 15 (3) ◽  
Author(s):  
Irfan Aslan ◽  
Hikmet Özbek ◽  
Andrzej Warchalowski

Altica lencorana Konstantinov, A. longicollis (Allard), Aphtlzona atrocaerulae (Stephens), A. violaceae (Koch), and Phyllotreta lorestanica Warchalowski are new for the Turkish Alticinae fauna. A. lencorana and P. lorestanica have earlier been known to occur only in their type localities in Azerbaijan and Iran, respectively. Since then, the records reported here (Bayburt and Erzurum provinces) are the first localities for A. lencorana, and that of Erzurum for P. lorestanica. Additionally, Centaurea glastifolia L. is reported as a new host plant for A. lencorana, and Euphorbia falcate and E. erioplzora as new host plants of Aphthona atrocaerulea and A. violaceae, respectively. The chorotype and host plants are reported for each of the five species.


2019 ◽  
Vol 113 (3) ◽  
pp. 149-159
Author(s):  
Atsalek Rattanawannee ◽  
Kanyanat Wongsa ◽  
Orawan Duangphakdee

Abstract Aphis craccivora Koch (Hemiptera: Aphididae) or cowpea aphid is a polyphagous insect pest that feeds on a variety of leguminous plants. We determined the contribution of host-associated genetic differentiation on population structure using the sequence data generated from analysis of mitochondrial cytochrome b oxidase (Cytb) and nuclear elongation factor-1 alpha (EF1-alpha) of A. craccivora collected from cultivated yardlong bean [Vigna unguiculata (L.) Walp. ssp. sesquipedalis (L.) H. Ohashi.] (Fabales: Fabaceae) and winged bean [Psophocarpus tetragonolobus (L.) D.C.] (Fabales: Fabaceae). Phylogenetic and haplotype network analyses revealed no evidence of strong host plant or geographical clustering in both the mitochondrial and nuclear gene dataset. A moderate, low-magnitude genetic distance (FST) between host plants and geographical localities was found in this study. An analysis of molecular variance (AMOVA) revealed that host plant and geography do not influence the structure of genetic variation in A. craccivora populations. Genetic variation between host plants at a location and host plants among locations demonstrated no consistent result for population subdivision of A. craccivora. These results suggest that geographical location and host plants do not significantly influence the genetic structure of A. craccivora, and this might be due to their high reproductive (parthenogenesis) ability and high migration (airborne) between host plants and regions of the country.


2021 ◽  
Vol 26 (1) ◽  
pp. 304-316
Author(s):  
Ivana Marić ◽  
Irena Međo ◽  
Dejan Marčić ◽  
Radmila Petanović ◽  
Slobodan Jovanović ◽  
...  

Seven spider mite species were recorded for the first time in Serbia: Bryobia macedonica Hatzinikolis & Panou, 1996 and Bryobia querci Hatzinikolis & Panou, 1997 from Bryobiinae, and Eutetranychus orientalis Klein, 1936; Oligonychus bicolor Banks, 1894; Oligonychus platani McGregor, 1950 Tetranychus canadensis McGregor, 1950 and Tetranychus ludeni Zacher, 1913 from Tetranychinae. Together with previously reported data, these findings raise the number of known tetranychid species in Serbia to 44, the second highest number of spider mite species recorded in the Balkan countries. The records of O. bicolor and T. canadensis are also the first ones on the Balkan Peninsula. The most frequent species were T. ludeni and E. orientalis, found in 24 and 13 out of 57 sampling locations. Spider mites were recorded on host plants in four basic habitat types, but predominantly in cultivated habitats and woodlands. A total of 27 plant species from nine families were recorded as hosts for newly recorded spider mites, including 12 plant species as new hosts for four tetranychids, and three plant species as new hosts for the family Tetranychidae. Plant family Rosaceae had the highest number of new hosts (7) and harbored the highest number of spider mite species (5). Tetranychus ludeni had the highest number of host plants (11) with two plant species as its new hosts. Oligonychus bicolor was found on eight host plants including five new hosts for this species and one new host for the family Tetranychidae. The other two new hosts for the family Tetranychidae harbored O. platani and B. querci, respectively. Symptoms of heavy infestations by E. orientalis and T. ludeni were recorded on host plants in several locations.


2018 ◽  
Vol 94 (2) ◽  
pp. 305-314 ◽  
Author(s):  
Tengteng Liu ◽  
Encui Wang ◽  
Shuxia Wang

Three species of the leafmining genus Liocrobyla Meyrick, 1916 from China are treated. Liocrobylaindigofera sp. n. feeding on the plant genus Indigofera is described as new to science. Liocrobylalobata Kuroko, 1960 feeding on Puerariamontanavar.lobata is newly recorded in China. Lespedezabicolor is documented as a new host plant for L.desmodiella Kuroko, 1982. Photographs of adult habitus, male and female genitalia, as well as host plants, leaf mines and biology are provided.


ZooKeys ◽  
2020 ◽  
Vol 970 ◽  
pp. 117-158
Author(s):  
Jonas R. Stonis ◽  
Arūnas Diškus ◽  
Andrius Remeikis ◽  
M. Alma Solis ◽  
Liliana Katinas

Seven new species of Tischeriidae are described from the Neotropics: Astrotischeria jociui Diškus & Stonis, sp. nov. (feeding on Wissadula excelsior (Cav.) C. Presl., Malvaceae), A. atlantica Diškus & Stonis, sp. nov. (feeding on Baccharis spicata (Lam.) Baill., Asteraceae), A. cornuata Diškus & Stonis, sp. nov. (host plant unknown), Paratischeria guarani Diškus & Stonis, sp. nov. (feeding on Elephantopus mollis Kunth, Asteraceae), P. mesoamericana Diškus & Stonis, sp. nov. (feeding on Montanoa hibiscifolia Benth., Asteraceae), P. suprafasciata Diškus & Stonis, sp. nov. (feeding on Allophyllus edulis (A. St.-Hil., A. Juss. & Cambess.) Hieron. ex Niederl., Sapindaceae), and P. braziliensis Diškus & Stonis, sp. nov. (host plant unknown). Additionally, an updated distribution map of Paratischeria neotropicana (Diškus & Stonis, 2015), which currently has the broadest distribution range among the Neotropical Tischeriidae is provided along with new host-plant data, a list of all recorded host plants in the Neotropics, and a brief discussion on trophic relationships of Tischeriidae. It is hypothesized that host-plant distribution ranges can provide clues to potential distribution ranges of these specialized, monophagous or oligophagous, leaf miners. All new taxa are illustrated with photographs of the adults, their genitalia, and, if available, leaf mines.


2021 ◽  
Vol 9 ◽  
Author(s):  
Valery A. Korneyev

The molecular-based phylogenetic analysis of the subfamily Tephritinae, the subfamily that contains almost all the cecidogenous species of the family Tephritidae, has reassigned several tribes and groups of genera and modified their concepts based on morphology alone to other tribes and, thus, changed the hypothetical scenarios of evolution of fly/host–plant relations and, in particular, the gall induction in different phylogenetic lineages. Gall induction is shown to arise independently within the Myopitini (in two lineages), Cecidocharini, Tomoplagia group of genera, Eurostini, Eutreta, Tephritis group of genera, Platensinini, Campiglossa group of genera, and Sphenella group of genera independently and more or less synchronously due to the shift to host plants with smaller flower heads and sensitive to larval feeding causing tissue proliferation. This was possibly a result of temporary aridization of the grassy biomes in the Nearctic and Afrotropic regions in the late Miocene or early Pliocene.


Author(s):  
Farhan Ali ◽  
Nan Bai ◽  
Fengyin Yang ◽  
Xiaoyue Hu ◽  
Yongmo Wang

The cotton-melon aphid, Aphis gossypii Glover, an extremely polyphagous pest insect, comprises of sympatric populations specialized on deferent host plants. The life history of A. gossypii infesting cucurbit crops remains elusive because oviparous aphids from overwintering hosts (often hibiscus) cannot colonize cucurbit crops. We verified that the hibiscus-specialized lineage (HI) suffered high mortality and gave birth to very few nymphs developing into yellow dwarfs when transferred to fresh cucumber because the HI lineage was unable to ingest phloem sap from fresh cucumber. However, the HI lineage ingested phloem sap successfully when cucumber leaves were pre-infected with Pseudoperonospora cubensis, a biotrophic phytopathogen, accompanied by significant fitness improvement. More surprisingly, the HI lineage with feeding experience on pre-infected cucumber for two generations performed as well as the cucumber-specialized lineage (CU) did on fresh cucumber, and inflicted typical damage symptom to healthy cucumber plant. This phytopathogen mediated host plant adaptation may be widespread in polyphagous aphids.


1997 ◽  
Vol 87 (4) ◽  
pp. 405-412 ◽  
Author(s):  
M. Niklaus-Ruiz Borge ◽  
T. Basedow

AbstractMcPhail traps baited with hydrolysed protein and borax to trap mainly female fruit flies, Jackson traps baited with trimedlure to attract male Ceratitis capitata Wiedemann, and Jackson traps baited with cuelure and methyl eugenol to trap Bactrocera spp., were hung in fruit trees at 50 sites and serviced weekly from June, 1994 to March, 1995, over an area of 350 km2 in Nicaragua. Samples of fruit were collected and kept separately to rear adult fruit flies and their hymenopterous parasitoids from known host plants. No Bactrocera spp. was trapped or reared from fruit at any site. Ceratitis capitata was caught in high numbers in McPhail and Jackson traps at nearly all sites in the dry season, attacking coffee berries and fruit of Citrus species. Toxotrypana curvicauda Gerstaecker was attracted to the food lure McPhail traps in low numbers and was widespread throughout the year, attacking papaya (Caricaceae). Of 29 Anastrepha species known to occur south of Mexico and north of Panama, ten were found during the study, occurring mainly in the rainy season; only two of them were trapped frequently and reared from collected fruit. Anastrepha obliqua Macquart proved to be the second most abundant fruit fly species, with a population peak from June to October when its preferred host plants Mangifera indica, Spondias mombin (Anacardiaceae) and Psidium friedrichsthalianum (Myrtaceae) were ripening. Anastrepha striata Schiner, trapped at 45 sites, occurred from June to November, attacking P. friedrichsthalianum and P. guajava. Sampled fruit of a further eight species in seven families were not attacked by tephritid flies. Parasitism by introduced braconid Diachasmimorpha longicaudata (Ashmead) was very low (3.7% in C. capitata, 2.7% in A. obliqua and 5.3% in A. striata).


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