Method for determining genetic marker for increased pig litter s

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435 911, 536 231, 536 243, 536 2431, 536 2433, 935 77, 935 78, C12Q 168, C12P 1934, C07H 2104, C07H 1700

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053745264

ABSTRACT:
Disclosed herein are genetic markers for pig litter size, methods for identifying such markers, and methods of screening pigs to determine those more likely to produce larger litters. The markers are based upon the presence or absence of certain polymorphisms in the pig estrogen receptor gene. Preferably, the polymorphism is a restriction fragment length polymorphism (RFLP). A 3.7 kilobase fragment and a 4.3 kilobase fragment obtained by digesting pig genomic DNA with the restriction endonuclease Pvu II and detecting the fragments with a probe comprising a detectably labeled human estrogen receptor gene are associated with increased litter size.

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