@conference {41719,
	title = {Current status of QTL and association studies in New Zealand cattle , sheep and deer},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {67},
	year = {2007},
	month = {Jan},
	pages = {153-159},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	address = {Wanaka},
	abstract = {In the last 15 years, a series of experiments has beencarried out to search for quantitative trait loci (QTL) in New Zealand cattle, sheepand deer. A QTL represents the position on a chromosome where there is a statistically significant genetic effecton a measured trait. This paper reviews data published so far from these QTL trials and from various association studies. Although the measurement of traits (or {\textquoteleft}phenotypes{\textquoteright}) and the sampling of tissue or fluid for DNA may be complete, the genotyping of DNA isstill incomplete in most studies; further work may be expected as new DNA genotyping techniques and new genomic data become available, and as funds allow. In cattle, we describe the current status of research for carcass composition, meat quality, pubertal traits, milk yield and milk composition traits, and resistance to facial eczema and bloat. In sheep, we include QTL searches for disease traits (resistance to nematode parasites, facial eczema, ryegrass staggers, and footrot), muscling and carcass composition, reproductive traits, wool traits, and lamb survival. In deer, QTL searches have been carried out for live weights, seasonality and pubertal traits, using measurements from an interspecific hybrid. Generally, significant results have been followed further by finemapping and independent validation, before release to industry. Some of the mapping techniques will be described, with examples. So far, QTLs under study in New Zealand have led to the identification and use of gene-tests or marker-tests for meat tenderness and carcass composition in beef cattle, milk yield and composition traits in dairy cattle, and meat yield \%, muscling and litter size genes in sheep.},
	issn = {1176-5283},
	author = {Morris CA and Campbell AW and Cullen NG and Davis GH and Everett-Hincks JM and Hall RJ and Henry HM and PL Johnson and McEwan JC and Phua SH and Wilson T}
}
@conference {41263,
	title = {The search for quantitative trait loci affecting wool colour},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {61},
	year = {2001},
	month = {Jan},
	pages = {104-108},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	address = {Christchurch},
	abstract = {Farmers have been attempting to breed whiter wool for some time using quantitative and subjective genetic selection based on phenotypic traits. The improvement of wool colour using this form of selection has achieved limited success. The advent of DNA marker maps has introduced the possibility of more directly relating phenotypic and genetic variation. Work presented here has identified a total of ten potential quantitative trait loci (QTL) that are significant at the suggestive level, and one additional QTL that approached this significance threshold that influence wool colour. There have been five putative QTL identified for base colour or challenge colour brightness. Two QTL affecting challenge colour yellowness was identified, while three QTL identified were linked to predictive colour variation. An additional QTL that affected predictive colour has also been mapped to a non-specific location on chromosome 24. Several further key areas of research need to be addressed before the DNA markers can be developed for use in the improvement of wool colour. },
	issn = {1176-5283},
	author = {McKenzie GW and Maher AP and Dodds KG and Beattie AE and Henry HM and Hickford JGH and Montgomery GW}
}
@conference {41095,
	title = {A genetic test to identify carriers of the ovine Inverdale fecundity gene},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {59},
	year = {1999},
	month = {Jan},
	pages = {114-116},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {The Inverdale high fecundity gene (FecXI ) is carried on the sheep X-chromosome. This provides a convenient means of producing prolific single copy carrier ewes because all daughters of a carrier ram will inherit the gene. A single copy of the gene increases litter size by about 0.6 lambs per ewe lambing. However, ewes homozygous for the gene are infertile. Production of elite rams that carry the gene requires the ability to distinguish between non-carrier and single copy carrier animals. Three DNA markers flanking the gene in a 10 cM (centiMorgan) region have been used to develop a genetic test that can identify single and double copy carriers in most cases. The test relies on detecting inheritance of the Inverdale region of the X-chromosome in offspring of known carriers. Validity of the genetic test has been confirmed by progeny testing of rams and laparoscopy of ewes. The test has recently been adapted to DNA obtained from a few plucked wool follicles. },
	issn = {1176-5283},
	author = {Galloway SM and Cambridge LM and Henry HM and Van Stijn TC and Davis GH}
}
