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Related Concept Videos

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Related Experiment Video

Updated: Apr 18, 2026

BEST: Barcode Enabled Sequencing of Tetrads
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orchard: Paternity program for autotetraploid species.

A Spielmann1, S A Harris2, D H Boshier2

  • 1St Edmund Hall, Oxford, OX1 4AR, UK.

Molecular Ecology Resources
|January 13, 2015
PubMed
Summary

A new software, orchard, enables paternity analysis in autotetraploid species using microsatellite markers. This tool aids in understanding gene flow and reproductive success in polyploid populations.

Keywords:
autotetraploidpaternitypollen flowtetraploid

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Area of Science:

  • Population Genetics
  • Molecular Ecology
  • Bioinformatics

Background:

  • Advances in molecular markers facilitate population genetics studies in polyploid species.
  • Paternity analysis is crucial for understanding gene flow, mating systems, and reproductive success.
  • Existing software lacks specific tools for paternity analysis in autotetraploid species.

Purpose of the Study:

  • To develop specialized software for paternity analysis in autotetraploid species.
  • To introduce orchard, a novel program for paternity assignment in autotetraploids.
  • To assess reproductive strategies and gene flow in polyploid populations.

Main Methods:

  • Development of the orchard software implementing exclusion and likelihood statistics.
  • Utilizing microsatellite markers for paternity assignment.
  • Incorporating optional features for allele dosage estimation and pollen flow distance calculation.

Main Results:

  • The orchard program successfully performed paternity analysis on microsatellite data.
  • Demonstrated the utility of exclusion and likelihood methods for autotetraploid paternity.
  • Validated the software using data from Dipteryx odorata, a tetraploid Amazonian tree.

Conclusions:

  • orchard provides a valuable tool for population genetic studies of autotetraploid organisms.
  • The software enhances the analysis of mating systems and reproductive success in polyploids.
  • Facilitates a deeper understanding of gene flow dynamics in complex polyploid systems.