Evidence map›Paper›PMID 27075571›Full record

ArticleParasites & vectors2016

Malaria vector Anopheles culicifacies sibling species differentiation using egg morphometry and morphology.

Varun Tyagi, A K Sharma, Sunil Dhiman, A R Srivastava, Ruchi Yadav, D Sukumaran, O P Agrawal, Vijay Veer

Open access · goldAbstract read
In one paragraph

Article in Parasites & vectors, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.6field-weighted citation impact, top 23% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 16 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 1 country.

Varun TyagiVector Management Division, Defence R&D Establishment, Jhansi Road, Gwalior, 474002, Madhya Pradesh, India. varundrl@rediffmail.com.
A K SharmaVector Management Division, Defence R&D Establishment, Jhansi Road, Gwalior, 474002, Madhya Pradesh, India.
Sunil DhimanMedical Entomology Division, Defence Research Laboratory, Tezpur, 784001, Assam, India.
A R SrivastavaVector Management Division, Defence R&D Establishment, Jhansi Road, Gwalior, 474002, Madhya Pradesh, India.
Ruchi YadavVector Management Division, Defence R&D Establishment, Jhansi Road, Gwalior, 474002, Madhya Pradesh, India.
D SukumaranVector Management Division, Defence R&D Establishment, Jhansi Road, Gwalior, 474002, Madhya Pradesh, India.
O P AgrawalSchool of Studies in Zoology, Jiwaji University, Gwalior, 474002, Madhya Pradesh, India.
Vijay VeerMedical Entomology Division, Defence Research Laboratory, Tezpur, 784001, Assam, India.
Defence Research and Development Establishment · INDefence Research Laboratory · INJiwaji University · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe malaria vector Anopheles culicifacies (sensu lato) is an important malaria vector in Southeast Asia which comprises of five sibling species namely A, B, C, D and E. However, only a few forms have been identified as malaria vectors in various endemic countries. Currently, for the first time egg morphometry and morphology has been used to differentiate the three known vector sibling species of Anopheles culicifacies collected from malaria endemic Madhya Pradesh state of central India.

methodsThe adult An. culicifacies (s.l.) was collected from five districts using standard mosquito collection methods. Adult female mosquitoes were allowed to lay eggs individually. The emerged mosquitoes were identified using allele specific polymerase chain reaction (AS-PCR) to sibling species. Eggs of sibling species A, D and E were studied using scanning electron microscopy (SEM) for morphometric and morphological characteristics.

resultsCurrently AS-PCR identified four known sibling species (B, C, D and E) of An. culicifacies in the study area. The surface morphology and morphometric attributes of the sibling species A, D and E eggs considerably differed from each other. An. culicifacies E had a narrow deck as compared to A and D, while An. culicifacies A had a bigger micropyle with 6-7 sectors as compared to D and E that had 6 sectors. An. culicifacies D had the smallest float (the structure present on sides of the egg surface in which air is filled that help in floating) and the number of ribs was also fewer than for An. culicifacies A and E.

conclusionsThe present study provides the first evidence that in addition to PCR assay, sibling species of An. culicifacies can also be differentiated using morphological and morphometric characteristics of the egg stage. The results also advocate that the sibling species of An. culicifacies are morphologically dissimilar and can be resolved using advanced microscopy.

Indexed as

AnimalsAnophelesFemaleHumansIndiaInsect VectorsMalariaMaleMicroscopy, Electron, ScanningOvumAnopheles culicifaciesMalariaMorphometryPCRSEMSibling species

Identifiers

PMID27075571
PMCPMC4831176
OpenAlexW2341253064

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.