Karyotype Study of Eight Species of<i>Anastrepha</i>(Diptera: Tephritidae)

Solferini, Vera Nisaka; Morgante, João Stenghel

doi:10.1080/00087114.1987.10797826

Cited by 46 publications

(51 citation statements)

References 17 publications

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“…In contrast, the so far studied species of the more derived fraterculus group, such as A. amita, A. obliqua, A. sororcula, A. turpiniae, A. zenildae and the four cryptic species of A. fraterculus, have only acrocentric autosomes (Solferini and Morgante, 1987;Selivon et al, 2004Selivon et al, , 2005aSelivon et al, , 2005bGoday et al, 2006). Moreover, it was shown that the centromeric regions of the A. grandis autosomes display a bright CMA 3 fluorescence, similar to the autosomes of A. serpentina (Goday et al, 2006).…”

Section: Discussionmentioning

confidence: 99%

“…It is interesting to note that the karyotypes of other Anastrepha species, e.g. A. aphelocentena (mucronota group), A. pseudoparallela (pseudoparallela group), A. spatulata, A. pickeli and A. montei (spatulata group), A. grandis (grandis group) and A. leptozona (leptozona group), also have XY/XX sex chromosomes and metacentric (or submetacentric) autosomes (Bush, 1962;Solferini and Morgante, 1987;Morgante et al, 1996;Selivon et al, 2005b). In contrast, the so far studied species of the more derived fraterculus group, such as A. amita, A.…”

Section: Discussionmentioning

confidence: 99%

“…In their short description of the chromosomes of this species, Solferini and Morgante (1987) showed that there are two pairs of metacentric and two pairs of acrocentric autosomes, neo-Y/neo-X sex chromosomes, and that the chromosomes X 1 and X 2 are acrocentric, while the neo-Y is sub-acrocentric ( Figure 1A). The results on the sex chromosomes were corroborated by the present analysis, but autosomes II and IV were shown to have arm ratios (S/L) of 0.70 and 0.72, respectively, thus being submetacentric instead of metacentric.…”

Section: Anastrepha Bistrigatamentioning

confidence: 99%

“…According to Solferini and Morgante (1987), the karyotype of this species is composed of two pairs of metacentric and three pairs of acrocentric autosomes with C-bands in their pericentromeric regions. The X chromosome is acrocentric and the heterochromatic Y chromosome is dot-shaped ( Figure 1B).…”

Section: Anastrepha Striatamentioning

confidence: 99%

“…Anastrepha striata and A. bistrigata are sister taxa which were assigned to the striata group, but a recent taxonomic revision proposed the realocation of both to the serpentina group (Norrbom, 2002). Anastrepha striata has a 2n = 12, and an XX/XY sex chromosome system, while A. bistrigata and A. serpentina show a neo-Y/neo-X sex chromosome system (X 1 X 2 Y/ X 1 X 1 X 2 X 2 , 2n = 11 in males, 2n = 12 in females) (Bush, 1962;Solferini and Morgante, 1987). In another report, Solferini and Morgante (1990) proposed that the karyotype of A. bistrigata may have derived from A. striata through fusion of the Y to an acrocentric autosome, giving origin to the neo-Y/neo-X chromosomes.…”

Section: Introductionmentioning

confidence: 99%

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Karyotype relationships among Anastrepha bistrigata, A. striata and A. serpentina (Diptera, Tephritidae)

et al. 2007

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The species of Anastrepha are arranged into 17 intrageneric groups. Recently, it was proposed that two species of the striata group, Anastrepha striata and A. bistrigata, might be realocated to serpentina group. Anastrepha bistrigata and A. serpentina have an X 1 X 2 Y/X 1 X 1 X 2 X 2 sex chromosome system while A. striata has a XY/XX system. It was previously proposed that the karyotype of A. bistrigata could be derived from that of A. striata by an Y:A fusion, and that the karyotype of A. serpentina would be derived from another, hypothetical karyotype. In the present report sequential staining with DAPI and chromomycin A3 (CMA 3 ), followed by C-banding, revealed that the C-banded heterochromatic blocks of the sex chromosomes of A. bistrigata have different affinities to fluorochromes in comparison to the chromosomes of A. striata, from which they have hypothetically derived. The chromosomes of A. serpentina show substantial differences in their cytochemical properties compared to their A. bistrigata and A. striata counterparts. The FISH technique showed that the ribosomal gene sequences are located in DAPI-or DAPI/CMA 3 -positive heterochromatic blocks of the sex chromosomes, one site on the Y chromosome and one site on the X chromosome (X 1 in A. bistrigata and A. serpentina). The data suggest that the karyotype of A. striata and A. bistrigata could be derived from a common ancestral karyotype, while the A. serpentina karyotype probably has a distinct origin.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Anastrepha Bistrigatamentioning

confidence: 99%

Section: Anastrepha Striatamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Karyotype relationships among Anastrepha bistrigata, A. striata and A. serpentina (Diptera, Tephritidae)

et al. 2007

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Cytogenetic analysis of the Ethiopian fruit fly Dacus ciliatus (Diptera: Tephritidae)

et al. 2011

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The Ethiopian fruit fly, Dacus ciliatus, is an important pest of cucurbits, which recently invaded the Middle East. The genetics and cytogenetics of D. ciliatus have been scarcely studied. Such information is, however, an essential basis for understanding the biology of insect pests, as well as for the design of modern control strategies. We report here the mitotic karyotype and detailed photographic maps of the salivary gland polytene chromosomes of this species. The mitotic metaphase complement consists of six pairs of chromosomes, including one pair of heteromorphic sex (XX/XY) chromosomes. The heterogametic sex is ascribed to the male. The analysis of the salivary gland polytene complement shows a total number of five long chromosomes (10 polytene arms), which correspond to the five autosomes of the mitotic nuclei, and a heterochromatic mass corresponding to the sex chromosomes. Banding patterns, as well as the most characteristic features and prominent landmarks of each polytene chromosome are presented and discussed. Chromosomal homologies between D. ciliatus and Bactrocera oleae are proposed by comparing chromosome banding patterns and by in situ hybridization of the hsp70 gene.

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Cuticular Hydrocarbons of the South American Fruit Fly Anastrepha fraterculus: Variability with Sex and Age

et al. 2012

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Insect cuticular hydrocarbons are usually species-specific mixtures and may serve for species and gender recognition. They are, therefore, widely used in the chemotaxonomy and zoogeography of various insect taxa. In order to provide a basic study for further comparative analyses of cuticular hydrocarbon (CHC) profiles of cryptic species hidden within the South American fruit fly Anastrepha fraterculus complex (Diptera: Tephritidae), we analyzed the composition of the CHCs and their production with respect to age and sex in a laboratory population from Tucuman, Argentina. Several techniques of gas chromatography with mass spectrometric detection have been used in order to develop a suitable method for CHC identification, i.e., GC-MS in EI mode, GC-MS in CI mode, and GC×GC/TOFMS. Our analyses revealed a complex profile of aliphatic hydrocarbons in both males and females, consisting predominantly of n-alkanes, methyl-branched alkanes, as well as of alkenes and alkadienes. In young individuals (up to about 5 days after emergence), the CHC profiles were similar in males and females. However, in older flies, these profiles diverged and became clearly sex-specific. The temporal dynamics of the CHC patterns in both sexes were evaluated using multivariate exploratory techniques.

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Karyotype Study of Eight Species ofAnastrepha(Diptera: Tephritidae)

Cited by 46 publications

References 17 publications

Karyotype relationships among Anastrepha bistrigata, A. striata and A. serpentina (Diptera, Tephritidae)

Karyotype relationships among Anastrepha bistrigata, A. striata and A. serpentina (Diptera, Tephritidae)

Cytogenetic analysis of the Ethiopian fruit fly Dacus ciliatus (Diptera: Tephritidae)

Cuticular Hydrocarbons of the South American Fruit Fly Anastrepha fraterculus: Variability with Sex and Age

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