Selection for dwarfism in poultry

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/12 (2006.01) A01K 67/02 (2006.01) A01K 67/027 (2006.01) C07K 14/47 (2006.01) C12Q 1/68 (2006.01)

Patent

CA 2277488

The invention relates to a gene located on chromosome 1 in chickens, which in birds is involved in so called autosomal dwarfism. The most likely candidate gene has a homolog in mice and men and is called HMGI-c. The sequence of the cDNA and genomic DNA of the gene is provided, as well as uses of said sequence or parts or derivatives thereof, as well as methods of using sequences from this gene or flanking sequences, or microsatellite markers in close vicinity to this gene in methods for selecting for one of the two alleles of this gene. Specifically provided are breeding methods using discrimination between dwarf fenotypes and non dwarf fenotypes, which are a result of the allele variation within this gene.

La présente invention concerne un gène situé sur le chromosome 1 des poulets, qui est impliqué, chez les oiseaux, dans ce qui est communément appelé le nanisme autosomique. Le gène candidat le plus probable possède un homologue chez la souris et chez l'être humain et s'appelle HMGI-c. L'invention se rapporte à la séquence de l'ADNc et de l'ADN génomique du gène, ainsi qu'aux utilisations desdites séquences, de parties ou de dérivés de ces séquences, et aux procédés d'utilisation de séquences de ce gène ou de régions flanquantes, ou de marqueurs microsatellites très proches de ce gène, dans des procédés permettant de sélectionner l'un des deux allèles du gène. L'invention concerne en particulier des procédés de sélection faisant appel à la distinction entre les phénotypes de nanisme et les phénotypes d'absence de nanisme, lesquels proviennent d'une variation de l'allèle à l'intérieur du gène.

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