Khandaker Asif Ahmed

Khandaker Asif Ahmed
The Commonwealth Scientific and Industrial Research Organisation | CSIRO · Division of Land and Water

PhD candidiate at Macquarie University/CSIRO

About

25
Publications
5,755
Reads
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6
Citations
Introduction
Khandaker Asif Ahmed currently works at the Division of Land and Water, The Commonwealth Scientific and Industrial Research Organisation. His current project is 'The biochemistry of remating inhibition in Qfly using Multi Omics technologies".
Additional affiliations
July 2017 - present
The Commonwealth Scientific and Industrial Research Organisation
Position
  • Postgraduate Research Student
February 2016 - June 2017
University of Dhaka
Position
  • Research Assistant
Description
  • key responsibilities were salt stress effect in 3rd instar larvae of Drosophila, RNA isolation, cDNA synthesis and Promoter, enhancer prediction using bioinformatics software.
October 2015 - February 2016
Faunal Survey and Enrichment of Facilities for Biodiversity Research, HEQEP
Position
  • Research Assistant
Description
  • My key responsibilities were to collect insect fauna from field trips, taxonomical identification, data analysis and report writing.
Education
July 2018 - July 2021
Macquarie University
Field of study
  • Applied Biosciences
June 2017 - June 2018
Macquarie University
Field of study
  • Biological Science
April 2014 - September 2015
University of Dhaka
Field of study
  • Zoology (Genetics and Molecular biology branch)

Publications

Publications (25)
Article
Full-text available
Mosquitoes are vectors of numerous deadly diseases, and mosquito classification task is vital for their control programs. To ease manual labor and time-consuming classification tasks, numerous image-based machine-learning (ML) models have been developed to classify different mosquito species. Mosquito wing-beating sounds can serve as a unique class...
Chapter
Recent advances in the field of genomic trait prediction has paved the way for developing futuristic plant breeding programs. The objective of our study is to predict a single or multiple traits of rapeseed (Brassica napus) based on the RNA sequence data. We analyzed 12 different traits of rapeseed and evaluated how their pair-wise correlation impa...
Preprint
Full-text available
De novo peptide sequencing aims to recover amino acid sequences of a peptide from tandem mass spectrometry (MS) data. Existing approaches for de novo analysis enumerate MS evidence for all amino acid classes during inference. It leads to over-trimming on receptive fields of MS data and restricts MS evidence associated with following undecoded amino...
Article
Full-text available
Females of many insect species are unreceptive to remating for a period following their first mating. This inhibitory effect may be mediated by either the female or her first mate, or both, and often reflects the complex interplay of reproductive strategies between the sexes. Natural variation in remating inhibition and how this phenotype responds...
Preprint
Full-text available
The COVID-19 pandemic has a devastating impact on the health and well-being of global population. Cough audio signals classification showed potential as a screening approach for diagnosing people, infected with COVID-19. Recent approaches need costly deep learning algorithms or sophisticated methods to extract informative features from cough audio...
Conference Paper
Females of many insects express sexual inhibition after their first mating, and this behavioural switch is commonly induced by components of male seminal fluid contents. Our project aims to first characterise this phenotype in the Queensland fruit fly (Bactrocera tryoni, Qfly) and secondly to identify the inhibitory molecules in male Qfly seminal f...
Presentation
Remating inhibition is an important component of the Darwinian fitness of males and an essential prerequisite for successful insect control strategies based on the sterile insect technique (SIT). In Qfly, sexual inhibition is mediated by male accessory gland products. The aim of my PhD project is to identify the male remating inhibitory molecules a...
Conference Paper
Remating inhibition is an evolutionary phenomenon important for Darwinian fitness of insect populations and pest control strategies based on the sterile insect technique. Sexual inhibition is mediated by male seminal fluid products transferred during mating. My project aims to identify the male accessory gland-derived remating inhibitory molecules...
Thesis
Full-text available
The Queensland fruit fly (Qfly) Bactrocera tryoni is a major pest of Australian horticulture. A Sterile Insect Technique is being developed to control Qfly but remating of females with wild males could undermine its success. In Qfly, the transfer of seminal fluid during mating influences the remating propensity of females. However, the protein and...
Presentation
Full-text available
Queensland fruit fly (Bactrocera tryoni, aka Qfly) is the most costly insect pest of Australian horticulture. A Sterile Insect Technique (SIT) is being developed to control Qfly but remating of females with wild males can undermine the success of SIT programs. In Qfly, male seminal fluid can influence the remating propensity of the mated females. H...
Conference Paper
Full-text available
Queensland fruit fly (Bactrocera tryoni, aka Qfly) is the most costly horticultural pest of Australia. Sterile Insect Technique (SIT) is being developed to control Qfly, but remating of female Qflies can undermine successful SIT programs. It is therefore crucial to inhibit the females from remating. Male Qflies are known to induce sexual inhibition...
Poster
Full-text available
Queensland fruit fly (aka Qfly) is the most costly pest of Australian fruit and vegetable crops, causing losses of approximately $300 million per year. A Sterile Insect Technique (SIT) is being developed to control Qfly. It involves the mass release of sterilised males who will outcompete wild males in mating with wild females. The females will th...
Presentation
Full-text available
Queensland fruit fly (Bactrocera tryoni, aka Qfly) is Australia’s most economically damaging insect pest of fruit and vegetable crops. Sterile Insect Technique (SIT) has been used as a biological control for many fruit fly species across the globe. In SIT, mass-reared sterile male flies are released into the field to mate with wild females and prod...
Poster
Full-text available
Background: Dhaka is one of the densely populated areas of the world and slums are very common in this city. They serve as hotspots of different air and waterborne diseases. The study was an initial approach to observe the prevalence and epidemiology of different diseases among the slum dwellers and floating population of Dhaka city. Methodology: P...
Poster
Full-text available
Background: Schistosomiasis is a snail-borne trematode infection of domestic animals as well as human in Asia and Africa. In Asia many cattle are being infected with trematode cercariae. This study targets to find out the pick prevalence and abundance of cacariae in freshwater snails, which transmit the infective stage to ruminants. Methodology: A...
Conference Paper
Full-text available
Drosophila is widely used as model organism. In the present study, Drosophila ananassae has been utilized to observe the effects of increased salt on development and survival. Drosophila larvae were reared in food with different doses of dietary salt and developmental time period at each stage of these organisms were recorded. First instar larvae w...
Article
Full-text available
Megaselia scalaris, commonly known as scuttle fly, is widely distributed all over the world. It is easily cultured in the laboratory condition making it a potential model organism. Besides, it has forensic importance. However, no report from Bangladesh could be retrieved about this fly. So, in the present study, identification of this species was a...
Poster
Full-text available
About 90% of the animal species belongs to the Class Insecta. Many of them are not reported yet. Traditionally, animal species are being identified by morphological characteristics. Since depending on morphology alone may lead to erroneous identification of species, addition of molecular techniques might be instrumental in resolving taxonomic uncer...
Presentation
Full-text available
The identification of fruitfly Drosophila is an essential part prior to study human homolog genes and their expression in this model organism. Report on molecular identification of local Drosophila species is lacking. Therefore, sequences of mitochondrial genes, 16S ribosomal RNA (16S) and cytochrome c oxidase 1 (CO1), in addition to morphological...

Questions

Question (1)
Question
I am working to identify local drosophila species morphologically. For Identification, I have " Drosophila: A Guide to Species Identification and Use Book by Patrick M. O'Grady and T.A. Markow ". It's a nice and comprehensive book.
Can you provide names of some other books/articles/materials, that can be helpful for Drosophila identification?

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Projects

Projects (3)
Project
1. Proteomic and metabolomic profiling of various male and female reproductive tissues of Bractocera tryoni. 2. Identification of candidate gene-enzyme/peptide systems in B. tryoni and characterization in various ways. The functional aspects of these candidate genes would be explored using RNAi and CRISPR Cas9 technology.
Archived project
The aim of the study is to identify Drosophila species up to species level, using both morphological and molecular features. To achieve this, parts of three important genes will be sequenced from the collected organisms after identifying them on the basis of key morphological features. Last year, only one of these genes ( 16S rRNA) was PCR- amplified and sequenced from three Drosophila species from Dhaka city. So, in this phase, Sequencing at least two more genes from Drosophila species with more sampling coverage (different parts of Bangladesh) is the main objective.
Archived project
The objectives of the study are to - 1.Finding promoter and enhancers of ATP alpha gene in Drosophila melanogaster 2. Testing the level of ATP alpha gene expression with salt stress using RT PCR ( conventional and quantitative) 3. Application of RNA in situ hybridization technique in Drosophila larvae 4. Testing ATP alpha gene expression variations with changes in dietary salt concentration, using RNA in situ hybridizarion