Method for generating cloned animals using chromosome shuffling
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United States of America Patent
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Issued Date -
Nov 21, 2002
app pub date -
Mar 25, 2002
filing date -
Mar 23, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention concerns the use of chromosomal replacement techniques in the context of producing cloned and transgenic animals, in order to correct chromosome abnormalities or alter autosomal genotypes, and provide for novel breeding pairs by replacing the sex chromosome in animals to be cloned. Replacement of a sex chromosome, or an X or Y chromosome, will result in animals that are autosomally isogenic and sexually non-isogenic (AISN), with 'autosomally isogenic' meaning that the paired sets of autosomes (non-sex chromosomes) in each animal are isogenic or identical. Also included in the invention are animals that are both 'autosomally' and 'allelically' isogenic whereby each particular pair of chromosomes is internally isogenic or identical within a single animal as well as between animals. Such animals are particularly useful in generating a line of cloned mammals using sexual reproduction, without having to undergo nuclear transfer in order to propagate cloned animals.
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