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Related Concept Videos

Synteny and Evolution02:31

Synteny and Evolution

John H. Renwick first coined the term “synteny” in 1971, which refers to the genes present on the same chromosomes, even if they are not genetically linked. The species with common ancestry tend to show conserved syntenic regions. Therefore, the concept of synteny is nowadays used to describe the evolutionary relationship between species.
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Synteny mapping in river buffalo

S M El Nahas1, H A Oraby, H A de Hondt

  • 1Department of Cell Biology, National Research Center, Dokki, Cairo, Egypt.

Mammalian Genome : Official Journal of the International Mammalian Genome Society
|November 1, 1996
PubMed
Summary

This study investigated gene locations in river buffalo using somatic cell hybrids and Southern hybridization. Five cattle gene groups were found to be syntenic in buffalo, aiding in chromosome mapping.

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Area of Science:

  • Genetics
  • Comparative Genomics
  • Mammalian Genetics

Background:

  • Gene mapping is crucial for understanding genome organization and evolution.
  • River buffalo (Bubalus bubalis) genome research is vital for livestock improvement.
  • Comparative genomics reveals conserved syntenic regions across species.

Purpose of the Study:

  • To investigate the synteny of ten coding loci in river buffalo.
  • To establish comparative gene mapping between river buffalo and cattle.
  • To predict the chromosomal localization of specific gene groups in river buffalo.

Main Methods:

  • Utilized a panel of 37 somatic cell hybrids from river buffalo and hamster cell lines.
  • Employed Southern hybridization technique for gene locus analysis.
  • Leveraged comparative mapping based on syntenic conservation and banding homology with cattle.

Main Results:

  • Identified five syntenic groups (TCRB-PGY3, ASS-ABL, FUCA1P-CRYG, MBP-YES1, CGN1-ACTA1) in river buffalo.
  • These syntenic groups correspond to previously assigned cattle groups (U13, U16, U17, U28, U29).
  • Predicted localization of these syntenic groups on river buffalo chromosomes (BBU7, BBU12, BBU2q, BBU22, BBU4q).

Conclusions:

  • Demonstrated extensive syntenic conservation between river buffalo and cattle genomes.
  • Comparative mapping provides a framework for river buffalo chromosome assignment.
  • This research contributes to understanding mammalian genome evolution and facilitates future genetic studies in river buffalo.