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Targeted Next-generation Sequencing and Bioinformatics Pipeline to Evaluate Genetic Determinants of Constitutional Disease
Published on: April 4, 2018
Tick genomics--coming of age
1Institute for Genome Sciences and Department of Microbiology and Immunology University of Maryland School of Medicine Baltimore, MD 21201, USA. vnene@som.umaryland.edu
Frontiers in Bioscience (Landmark Edition)
|March 11, 2009
Summary
Tick genomics presents significant challenges due to large genomes and repetitive DNA sequences. Advances in genomics tools are crucial for understanding tick biology and vector control.
Area of Science:
- Genomics
- Vector Biology
- Tick Research
Background:
- Tick genomes are large, ranging from 1.04–7.1 x10^9 bp, exceeding human genome size.
- Karyotype studies show varied chromosome numbers and XY or XO sex determination systems.
- Tick genomes are predominantly composed of repetitive sequences (65–70%), with limited low-copy number sequences.
Purpose of the Study:
- To outline the challenges and current state of tick genomics.
- To highlight the importance of genomics tools for tick and vector biology research.
Main Methods:
- Analysis of existing karyotype data and re-association hybridization kinetics.
- Review of expressed sequence tag (EST) data and whole genome sequencing projects.
- Discussion of genomics tool development in tick research.
Main Results:
- Large genome size and high proportion of repetitive DNA are key challenges in tick genomics.
- Limited large-scale EST data exists for most tick species, with only Ixodes scapularis having a whole genome project.
- Genomics tools are advancing, paving the way for further research.
Conclusions:
- Tick genomics faces substantial hurdles, including genome size and repetitive elements.
- Development and application of advanced genomics tools are essential for progress in tick biology and vector control strategies.
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