pedigree research Archive

  •   Over 250,000 Border Collies have been registered with the ISDS since its founding over a century ago even though they didn’t really keep comprehensive stud books in earnest until...

    Only 8 Border Collies

      Over 250,000 Border Collies have been registered with the ISDS since its founding over a century ago even though they didn’t really keep comprehensive stud books in earnest until...

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  • In pedigree analysis, the Sire Line is the singular branch of a family tree that looks only at the transmission of the Y chromosome.  Because the sex chromosomes don’t recombine...

    Popular BC Sire Lines

    In pedigree analysis, the Sire Line is the singular branch of a family tree that looks only at the transmission of the Y chromosome.  Because the sex chromosomes don’t recombine...

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  • In my last post, I explained how one might find “virtual immortality” by having 99.9% of their genes present within one’s offspring.  If these offspring are your children which each...

    Reconstructing Wiston

    In my last post, I explained how one might find “virtual immortality” by having 99.9% of their genes present within one’s offspring.  If these offspring are your children which each...

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  • In a lecture titled Some Practical Problems of Immortality, game developer Ernest Adams tackles the issues of dealing with the notions of immortality we get from fiction. He designates “Virtual...

    Virtual Immortality

    In a lecture titled Some Practical Problems of Immortality, game developer Ernest Adams tackles the issues of dealing with the notions of immortality we get from fiction. He designates “Virtual...

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  • Collie Eye Anomaly is an inherited genetic disease which causes abnormal structure within the eye.  It has variable expression from mild dysfunction to blindness and there is no treatment.  CEA is...

    Through Anomalous Eyes

    Collie Eye Anomaly is an inherited genetic disease which causes abnormal structure within the eye.  It has variable expression from mild dysfunction to blindness and there is no treatment.  CEA is...

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  • Lusia at Lassie Gets Help puts forth Dewi Tweed, the 2010 International Supreme Champion sheep dog as proof that the “genetic bottleneck” in Border Collies is benign or perhaps a...

    The BC Bottleneck

    Lusia at Lassie Gets Help puts forth Dewi Tweed, the 2010 International Supreme Champion sheep dog as proof that the “genetic bottleneck” in Border Collies is benign or perhaps a...

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