A Comparative Study of Mosquito Karyotypes1

S., K.

doi:10.1093/aesa/56.2.160

Cited by 78 publications

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“…Also, this variation was accompanied by a two-fold range in the total chromosomal lengths at somatic metaphases. This increase in chromosomal size was often observed in all the three pairs of chromosoines, rather than one particular pair (Rai, 1963;Dev and Rai, 1984;Sherron and Rai, 1984;Rao and Rai, 1987). There was a good correlation between the DNA amounts and the total chromosomal lengths ( fig.…”

Section: Discussionmentioning

confidence: 80%

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Inter and intraspecific variation in nuclear DNA content in Aedes mosquitoes

Rao

1987

Heredity

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Haploid nuclear DNA of 23 species of Aedes, as determined by Feulgen cytophotometry, was found to vary 3-fold. This was accompanied by a 2-fold variation in total chromosomal length. There was a significant correlation (r = 9765, P< 0.001) between these two parameters. Genome size varied from 0-87 pg to 1-3 pg among 10 strains of Aedes albopictus, from wide geographic regions. Large scale differences in chromosomal DNA amounts have accompanied speclation and evolution in aedine mosquitoes.

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Section: Discussionmentioning

confidence: 80%

“…The total chromosomal length of Ae. stimulans was the largest among the species reported by Rai (1963). Ae.…”

Section: Discussionmentioning

confidence: 91%

Inter and intraspecific variation in nuclear DNA content in Aedes mosquitoes

Rao

1987

Heredity

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“…Our study demonstrates that physical changes of the nuclei and chromosomes occurred after application of dillapiol. Micronuclei, also called satellites or extra-chromosomal elements, occur naturally in mosquitoes: Orthopodomyia and Toxorhynchites (Breland, 1961;Kitzmiller, 1963), Aedes atropalpus (Rai, 1963), A. vittatus (Rai, 1966), Psorophora signipennis (Mukherjee and Rees, 1970), and A. aegypti and A. fluviatilis treated with synthetic insecticides Bicudo, 1994, 1995; see also our Figure 3). Apparently micronuclei disappear after prophase due to chromosomal condensation in metaphase (Breland, 1961).…”

Section: Discussionmentioning

confidence: 95%

Potential control of Aedes aegypti (Diptera: Culicidae) with Piper aduncum L. (Piperaceae) extracts demonstrated by chromosomal biomarkers and toxic effects on interphase nuclei

Wj²,

Jj³

et al. 2008

Genet. Mol. Res.

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ABSTRACT. Dillapiol, a phenylpropanoid isolate from essential oils of leaves of Piper aduncum (Piperaceae), has insecticidal, fungicidal and antimicrobial activities. The insecticidal activity of dil- Genotoxic effect of dillapiol on dengue mosquitoes lapiol was tested in vivo on the larvae and pupae of Aedes aegypti, the mosquito vector of dengue. Specifically, the effect of dillapiol on the formation of micronuclei and chromosome aberrations was analyzed. Dillapiol treatments comprised two concentrations of 200 and 400 μg/mL, dissolved in well water, and a pure well water control used to rear four generations of mosquitoes. Micronuclei occurred in mitotic diploid and tetraploid chromosomes of larvae; nuclear abnormalities also occurred in interphase, metaphase, telophase, and single nucleus cells of pupae. Mortality, oviposition, chromosome breakage, and anaphase bridges were significantly greater in the extract treatments than in controls. The genotoxic effects of dillapiol described here suggest that this natural product may be a useful alternative for the control of A. aegypti.

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“…The mitotic chromosome complement of Ae. aegypti consists of three pairs of metacentric chromosomes (Rai, 1963) that are numbered 1 (smallest), 2 (largest) and 3 (intermediate) (McDonald and Rai, 1970). Ae.…”

Section: │ 3 Genetics Of the Mosquito Ae Aegypti Safety Assessmentomentioning

confidence: 99%

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2018

Safety Assessment of Transgenic Organisms in the Environment, Volume 8

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This work is published under the responsibility of the Secretary-General of the OECD. The opinions expressed and arguments employed herein do not necessarily reflect the official views of OECD member countries.This document, as well as any data and any map included herein, are without prejudice to the status of or sovereignty over any territory, to the delimitation of international frontiers and boundaries and to the name of any territory, city or area.Please cite this publication as: OECD (2018) The statistical data for Israel are supplied by and under the responsibility of the relevant Israeli authorities. The use of such data by the OECD is without prejudice to the status of the Golan Heights, East Jerusalem and Israeli settlements in the West Bank under the terms of international law.Photo credits: Cover © Maks Ershov.Corrigenda to OECD publications may be found on line at: www.oecd.org/about/publishing/corrigenda.htm. © OECD 2018You can copy, download or print OECD content for your own use, and you can include excerpts from OECD publications, databases and multimedia products in your own documents, presentations, blogs, websites and teaching materials, provided that suitable acknowledgment of the source and copyright owner(s) is given. All requests for public or commercial use and translation rights should be submitted to rights@oecd.org. Requests for permission to photocopy portions of this material for public or commercial use shall be addressed directly to the Copyright Clearance Center (CCC) at info@copyright.com or the Centre francais d'exploitation du droit de copie (CFC) at contact@cfcopies.com. FOREWORD │ 3SAFETY ASSESSMENTOF TRANSGENIC ORGANISMSIN THE ENVIRONMENT, VOLUME 8 © OECD 2018 ForewordModern biotechnologies are applied to plants species (crops, flowers, trees), animals and micro-organisms. The safety of the resulting transgenic organisms when released in the environment for their use in agriculture, forestry, the food and feed industry or for other applications represents a challenging issue. Genetically engineered products are rigorously assessed by their developers during their elaboration, and by governments when ready for release, to ensure high safety standards. This remains essential with new biotechnology developments using insects to fight against disease outbreaks: engineered mosquitoes need to be evaluated through a scientifically sound approach to risk/safety assessment that will inform biosafety regulators and support the decision concerning the release of these novel organisms in the environment.The OECD offers a long-standing recognised expertise in biosafety and contributes to facilitating an harmonised approach. The OECD's Working Group on Harmonisation of Regulatory Oversight in Biotechnology (WG-HROB) was established in 1995. The WG-HROB gathers national authorities responsible for the environmental risk/safety assessment of products of modern biotechnology in OECD countries and other economies. International organisations and experts involved in biosafety activities are a...

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A Comparative Study of Mosquito Karyotypes1

Cited by 78 publications

References 0 publications

Inter and intraspecific variation in nuclear DNA content in Aedes mosquitoes

Inter and intraspecific variation in nuclear DNA content in Aedes mosquitoes

Potential control of Aedes aegypti (Diptera: Culicidae) with Piper aduncum L. (Piperaceae) extracts demonstrated by chromosomal biomarkers and toxic effects on interphase nuclei

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