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Related Concept Videos

Evolutionary Relationships through Genome Comparisons02:54

Evolutionary Relationships through Genome Comparisons

Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...
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Inheritance of RFLP loci in a loblolly pine three-generation pedigree.

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Related Experiment Video

Updated: May 21, 2026

Processing the Loblolly Pine PtGen2 cDNA Microarray
07:01

Processing the Loblolly Pine PtGen2 cDNA Microarray

Published on: March 20, 2009

Comparative mapping in loblolly and radiata pine using RFLP and microsatellite markers.

M E Devey1, M M Sewell, T L Uren

  • 1CSIRO Forestry and Forest Products, E4008, Kingston, Australia, AU, michael.devey@ffp.csiro.au.

TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik
|June 6, 2012
PubMed
Summary
This summary is machine-generated.

Genetic linkage maps for loblolly and radiata pine were created using shared markers. Comparative mapping revealed conserved gene order, aiding future pine genetic research.

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Area of Science:

  • * Plant genetics and genomics
  • * Forest tree breeding and genetics

Background:

  • * Developing genetic linkage maps is crucial for understanding plant genomes.
  • * Comparative mapping between related species aids in gene discovery and evolutionary studies.

Purpose of the Study:

  • * To construct and compare genetic linkage maps for loblolly pine (Pinus taeda L.) and radiata pine (P. radiata D. Don).
  • * To identify homologous loci and assess genome collinearity between the two pine species.

Main Methods:

  • * Utilized Restriction Fragment Length Polymorphism (RFLP) and microsatellite markers for map construction.
  • * Combined data from two full-sib families for loblolly pine map.
  • * Assayed 60 homologous RFLP loci and 9 polymorphic microsatellite loci in both species for comparative analysis.

Main Results:

  • * Developed genetic maps: loblolly pine (20 linkage groups, 1281 cM) and radiata pine (14 linkage groups, 1223 cM).
  • * Identified 12 syntenic groups with conserved RFLP loci order between species.
  • * Found high collinearity of homologous loci, indicating minimal chromosomal rearrangements during evolution.

Conclusions:

  • * Comparative mapping between loblolly and radiata pine is feasible due to conserved marker patterns.
  • * The established maps and homologous loci provide a foundation for future genetic research in both species.
  • * Results suggest a stable genome structure in these pine species, facilitating cross-species genetic studies.