@conference {40740,
	title = {Elucidation of the genetic nature of the Inverdale gene (FecX): Segregation with a twist},
	booktitle = {Proceedings of the New Zealand Society of Animal Production},
	volume = {55},
	year = {1995},
	month = {Jan},
	pages = {291-293},
	publisher = {New Zealand Society of Animal Production},
	organization = {New Zealand Society of Animal Production},
	abstract = {A major gene, affecting a quantitative trait in farmed livestock,  is usually detected by observing segregation of the gene within families  such as half-sib sire families. In the case of the Inverdale, a  maternal family was observed to contain some highly prolific ewes.  Progeny testing of four rams from this family revealed two rams with  prolific progeny, but segregation amongst these progeny was not  apparent. The data appeared to be consistent with the hypothesis of an  X-linked major gene, but were not conclusive. A further progeny test  involving six sons and five maternal grandsons of a putative Inverdale  ram was undertaken. Three of the maternal grandsons but no sons had  prolific daughters, confirming the X-linked hypothesis. Further major  gene searches should consider X-linked as well as other modes of  inheritance. The mode of inheritance, and effect of one and two copies  of the Inverdale gene, have important consequences for its use in  research and production.   },
	issn = {1176-5283},
	author = {Dodds KG and Davis GH and McEwan JC and Fennessy PF}
}
