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Microsatellite DNA marker mapping of bovine chromosome 1 for QTL affecting birth weight and preweaning growth in Japanese Black Cattle (Wagyu)

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Malau-Aduli, AEO, Niibayashi, T, Kojima, T, Oshima, K, Mizoguchi, Y, Sugimoto, Y and Komatsu, M 2003 , 'Microsatellite DNA marker mapping of bovine chromosome 1 for QTL affecting birth weight and preweaning growth in Japanese Black Cattle (Wagyu)', paper presented at the Association for the Advancement of Animal Breeding and Genetics Conference, 7 July 2003, Melbourne.

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Abstract

Interval mapping within 5 families of Japanese Black Cattle (Wagyu) to detect segregating QTL for birth weight and preweaning average daily gain on bovine chromosome 1 was performed by genotyping 132 half-sib progeny using 98 microsatellite DNA markers. A significant QTL for birth weight was detected at 114cM (95% confidence interval of 50-130.5cM) in one sire. Suggestive QTL for preweaning average daily gain were detected at 14cM and 18cM just below the chromosome-wide threshold in 2 sires. It was concluded that evidence of significant QTL in chromosomal regions of bovine chromosome one was compelling for birth weight hence enhancing the prospects of marker-assisted selection in this breed.

Item Type: Conference or Workshop Item (Paper)
Authors/Creators:Malau-Aduli, AEO and Niibayashi, T and Kojima, T and Oshima, K and Mizoguchi, Y and Sugimoto, Y and Komatsu, M
Keywords: Microsatellite DNA markers, QTL, Wagyu, preweaning growth.
ISSN: 1328-3227
Additional Information:

In: Lynda Hygate (Editor). 50 years of DNA. Proceedings Association for the Advancement of Animal Breeding and Genetics, Melbourne, Australia, vol. 15, 14-17.

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