Mapping of quantitative trait loci affecting organ weights and blood variables in a broiler layer cross

P  Navarro; P M  Visscher; S A  Knott; D W  Burt; P M  Hocking; C S  Haley

doi:10.1080/00071660500158055

Mapping of quantitative trait loci affecting organ weights and blood variables in a broiler layer cross

P Navarro, P M Visscher, S A Knott, D W Burt, P M Hocking, C S Haley

Research output: Contribution to journal › Article › peer-review

Abstract

1. A genome scan was performed to locate genomic regions associated with traits that are known to vary in birds ( most commonly broilers) suffering from heart, lung or muscular dysfunction and for weight of the dressed carcass and some internal organs.

2. The F-2 population studied was derived from a cross between a broiler and a layer line and consisted of over 460 birds that were genotyped for 101 markers.

3. There was strong support for segregation of quantitative trait loci (QTL) for carcass and organ weights and blood variables. We identified 11 genome-wide significant QTL ( most of them for dressed carcass weight) and several genome-wide suggestive QTL.

4. The results point to some genome regions that may be associated with health-related traits and merit further study, with the final aim of identifying linked genetic markers that could be used in commercial breeding programmes to decrease the incidence of muscular and metabolic disorders in broiler populations.

Original language	English
Pages (from-to)	430-442
Number of pages	13
Journal	British Poultry Science
Volume	46
Issue number	4
DOIs	https://doi.org/10.1080/00071660500158055
Publication status	Published - Aug 2005

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title = "Mapping of quantitative trait loci affecting organ weights and blood variables in a broiler layer cross",

abstract = "1. A genome scan was performed to locate genomic regions associated with traits that are known to vary in birds ( most commonly broilers) suffering from heart, lung or muscular dysfunction and for weight of the dressed carcass and some internal organs.2. The F-2 population studied was derived from a cross between a broiler and a layer line and consisted of over 460 birds that were genotyped for 101 markers.3. There was strong support for segregation of quantitative trait loci (QTL) for carcass and organ weights and blood variables. We identified 11 genome-wide significant QTL ( most of them for dressed carcass weight) and several genome-wide suggestive QTL.4. The results point to some genome regions that may be associated with health-related traits and merit further study, with the final aim of identifying linked genetic markers that could be used in commercial breeding programmes to decrease the incidence of muscular and metabolic disorders in broiler populations.",

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AU - Navarro, P

AU - Visscher, P M

AU - Knott, S A

AU - Burt, D W

AU - Hocking, P M

AU - Haley, C S

PY - 2005/8

Y1 - 2005/8

N2 - 1. A genome scan was performed to locate genomic regions associated with traits that are known to vary in birds ( most commonly broilers) suffering from heart, lung or muscular dysfunction and for weight of the dressed carcass and some internal organs.2. The F-2 population studied was derived from a cross between a broiler and a layer line and consisted of over 460 birds that were genotyped for 101 markers.3. There was strong support for segregation of quantitative trait loci (QTL) for carcass and organ weights and blood variables. We identified 11 genome-wide significant QTL ( most of them for dressed carcass weight) and several genome-wide suggestive QTL.4. The results point to some genome regions that may be associated with health-related traits and merit further study, with the final aim of identifying linked genetic markers that could be used in commercial breeding programmes to decrease the incidence of muscular and metabolic disorders in broiler populations.

AB - 1. A genome scan was performed to locate genomic regions associated with traits that are known to vary in birds ( most commonly broilers) suffering from heart, lung or muscular dysfunction and for weight of the dressed carcass and some internal organs.2. The F-2 population studied was derived from a cross between a broiler and a layer line and consisted of over 460 birds that were genotyped for 101 markers.3. There was strong support for segregation of quantitative trait loci (QTL) for carcass and organ weights and blood variables. We identified 11 genome-wide significant QTL ( most of them for dressed carcass weight) and several genome-wide suggestive QTL.4. The results point to some genome regions that may be associated with health-related traits and merit further study, with the final aim of identifying linked genetic markers that could be used in commercial breeding programmes to decrease the incidence of muscular and metabolic disorders in broiler populations.

U2 - 10.1080/00071660500158055

DO - 10.1080/00071660500158055

M3 - Article

SN - 0007-1668

VL - 46

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JO - British Poultry Science

JF - British Poultry Science

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Mapping of quantitative trait loci affecting organ weights and blood variables in a broiler layer cross

Abstract

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