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Next-generation Sequencing03:00

Next-generation Sequencing

The first human genome sequencing project cost $2.7 billion and was declared complete in 2003, after 15 years of international cooperation and collaboration between several research teams and funding agencies. Today, with the advent of next-generation sequencing technologies, the cost and time of sequencing a human genome have dropped over 100 fold.
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Rapid Microsatellite Marker Development Using Next Generation Pyrosequencing to Inform Invasive Burmese Python-Python

Margaret E Hunter1, Kristen M Hart

  • 1U.S. Geological Survey, Southeast Ecological Science Center, 7920 NW 71st Street, Gainesville, FL 32653, USA. mhunter@usgs.gov.

International Journal of Molecular Sciences
|March 2, 2013
PubMed
Summary
This summary is machine-generated.

Researchers developed new genetic markers to study invasive Burmese pythons (Python molurus bivittatus) in the Everglades. These microsatellite loci will help track python populations and understand hybridization risks with other python species.

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Area of Science:

  • Ecology
  • Genetics
  • Conservation Biology

Background:

  • Invasive species, like the Burmese python (Python molurus bivittatus), pose significant threats to native ecosystems and incur high economic costs.
  • The Burmese python is a major invasive species in the US, particularly impacting the Greater Everglades ecosystem and imperiled native taxa.

Purpose of the Study:

  • To develop novel, species-specific microsatellite loci for the Burmese python using next-generation sequencing.
  • To assess the genetic structure and relatedness within invasive Burmese python populations.
  • To investigate potential hybridization between Burmese pythons and other invasive python species.

Main Methods:

  • Utilized the Roche 454 GS-FLX Titanium platform for next-generation sequencing to identify microsatellite repeats.
  • Screened and selected tri- and tetra-nucleotide loci for polymerase chain reaction (PCR) amplification.
  • Developed 24 polymorphic microsatellite loci, including six cross-species loci, organized into eight PCR multiplexes.

Main Results:

  • Successfully developed and validated 24 polymorphic microsatellite loci for Burmese pythons.
  • Genotyping revealed an average heterozygosity of 61% and 3.7 alleles per locus.
  • Cross-species amplification confirmed the utility of these markers for studying hybridization with Ball pythons (P. regius) and Northern African pythons (P. sebae).

Conclusions:

  • The developed microsatellite markers provide a powerful tool for population-level studies of invasive pythons.
  • These genetic markers will aid in tracking invasion fronts and monitoring population suppression efforts.
  • The markers are crucial for assessing hybridization dynamics, a key factor in invasive species management.