Presentation is loading. Please wait.

Presentation is loading. Please wait.

DNA Marker Validation Update Dick Quaas Cornell University Beef improvement Federation Annual Meeting, Billings MT, 7-9 July 2005.

Published byVeronica Tucker Modified over 9 years ago

Similar presentations

Presentation on theme: "DNA Marker Validation Update Dick Quaas Cornell University Beef improvement Federation Annual Meeting, Billings MT, 7-9 July 2005."— Presentation transcript:

1 DNA Marker Validation Update Dick Quaas Cornell University Beef improvement Federation Annual Meeting, Billings MT, 7-9 July 2005

2 Overview Merial SNPs in validation pipeline Currently genotyping Bovigen Several SNPs analyzed 1 more coming Today’s topic

3 Bovigen Genotypes/Tests Tenderness = Warner-Bratzler Shear Force Calpastatin (CAST)Australia Calpain 316 (CAPN316)MARC GeneStar Tenderness 2 = CAST + CALP316 (0-4) Quality = Marbling Score TG5: original GeneStar Marbling M2: new anonymous marker M3: new anonymous marker Feedlot Quality = TG5+M2+M3 (scored 0-6) GeneStar Quality Test = TG5+M2 (scored 0-4)

4 Data: Cattle Continental 387-424 Charolais–sired CMP cattle “with a few exceptions,... black Angus females ” Robert Williams British 285-324 Hereford–sired CMP cattle “majority of the... dams were Hereford or Hereford x Red Angus crosses” Craig Huffines Indicus-influenced 393-404 purebred Santa Gertrudis cattle from King Ranch – testing in progress

5

6

7

8 Tenderness Analyses Models Y = CG + Marker Effect + Sire + e Marker Effect 1.b x (CAST + CAPN316) b = effect of average tenderness star 2.b1 x CAST + b2 x CAPN316 b1 =effect of CAST star b2 = effect of CAPN316 star SAS Proc-Mix

9 Value of a Tenderness Star

10 Tenderness Taurus Data

11 Conclusions: GeneStar Tenderness Combined Taurus data CAST, CAPN316 & GeneStar Tenderness 2 effects 1.all statistically significant 2.all biologically important 3.CAPN316 star bigger than CAST star

12 Marbling Analyses Traits Marbling Score “% Choice” = % ≥ Small00 Model Y = CG + Marker Effect + Sire + e Marker Effect 1.b x GSQT GSQT = TG5 + M2 2.b1 x TG5 + b2 x M2 SAS Proc-Mix

13 TG5 & M2 Allele Frequencies

14 Marbling Score Analyses

15 % Choice Analyses

16 Conclusions: GeneStar Quality Hereford data Very low favorable allele frequencies No power to detect effect of markers

17 Charolais-Angus Data Marbling Score Non-significant estimate In direction of documentation provided by Bovigen % Choice GSQT star = 6.2%, p<.06 TG5 star > M2 star Conclusions: GeneStar Quality

Download ppt "DNA Marker Validation Update Dick Quaas Cornell University Beef improvement Federation Annual Meeting, Billings MT, 7-9 July 2005."

Similar presentations

Breeds of Livestock Beef Cattle

Breeds of Livestock Beef Cattle
Genetics.

Genetics.
Beef Cattle. Angus Brahman Charolais Hereford.

Beef Cattle. Angus Brahman Charolais Hereford.
DNA Testing and Marker Assisted Selection R. Mark Thallman U.S. Meat Animal Research Center Clay Center, NE.

DNA Testing and Marker Assisted Selection R. Mark Thallman U.S. Meat Animal Research Center Clay Center, NE.
Introducing GeneSTAR ® MVP Molecular Value Predictions for Beef Quality and Production Traits.

Introducing GeneSTAR ® MVP Molecular Value Predictions for Beef Quality and Production Traits.
Effect of Time of Birth Within the Spring Calving Season on Performance and Carcass Traits of Beef Calves Fed in the Iowa Tri-County Steer Carcass Futurity.

Effect of Time of Birth Within the Spring Calving Season on Performance and Carcass Traits of Beef Calves Fed in the Iowa Tri-County Steer Carcass Futurity.
Question??? If two blue eyed people have kids, what color eyes will their kids have? If two brown eyed people have kids, what color eyes will their kids.

Question??? If two blue eyed people have kids, what color eyes will their kids have? If two brown eyed people have kids, what color eyes will their kids.
Animal Breeding Systems

Animal Breeding Systems
Coming soon to a genetics lab near you! NBCEC Beef Genetic Workshop Clay Center, NE March 27, 2004 Marker adjusted EPDs.

Coming soon to a genetics lab near you! NBCEC Beef Genetic Workshop Clay Center, NE March 27, 2004 Marker adjusted EPDs.
Meeting Consumer Demands through Genetic Selection: The NCBA Carcass Merit Project Dan W. Moser on behalf of the CMP Team.

Meeting Consumer Demands through Genetic Selection: The NCBA Carcass Merit Project Dan W. Moser on behalf of the CMP Team.
Breeds of Beef Cattle. Terms Breed - group of animals related by decent from common ancestors, with similar characteristics Bull - a male Cow - a female.

Breeds of Beef Cattle. Terms Breed - group of animals related by decent from common ancestors, with similar characteristics Bull - a male Cow - a female.
Multiple Breed Evaluation Can MBE enhance crossbreeding? John Pollak Cornell University Director, NBCEC.

Multiple Breed Evaluation Can MBE enhance crossbreeding? John Pollak Cornell University Director, NBCEC.
GeneMax™ Mark McCully Certified Angus Beef LLC. Supply challenges for future growth?

GeneMax™ Mark McCully Certified Angus Beef LLC. Supply challenges for future growth?
Cattle Unit Ms Russell What You Will Learn: Breeds of Cattle Body Parts of Cattle Cattle Terms Different Types of Businesses You Can have with Cattle.

Cattle Unit Ms Russell What You Will Learn: Breeds of Cattle Body Parts of Cattle Cattle Terms Different Types of Businesses You Can have with Cattle.
Breeds of Beef & Dairy Cattle Mrs. Gilbreath. Today you will be able to… Identify characteristics of Major Beef Cattle Breeds, Dual-Purpose and Dairy.

Breeds of Beef & Dairy Cattle Mrs. Gilbreath. Today you will be able to… Identify characteristics of Major Beef Cattle Breeds, Dual-Purpose and Dairy.
John Genho NBCEC Brown Bagger Series

John Genho NBCEC Brown Bagger Series
R.L. Quaas31 Oct. 2006NBCEC Brown Bagger DNA Test Validation Update Dick Quaas Cornell University.

R.L. Quaas31 Oct. 2006NBCEC Brown Bagger DNA Test Validation Update Dick Quaas Cornell University.
Detection of QTL in beef cattle Eduardo Casas U.S. Meat Animal Research Center, Clay Center, Nebraska.

Detection of QTL in beef cattle Eduardo Casas U.S. Meat Animal Research Center, Clay Center, Nebraska.
Understanding and Managing Variation in Meat Tenderness T. L. Wheeler, D. A. King, and S. D. Shackelford U. S. Meat Animal Research Center, Agricultural.

Understanding and Managing Variation in Meat Tenderness T. L. Wheeler, D. A. King, and S. D. Shackelford U. S. Meat Animal Research Center, Agricultural.
Exploring Genotypes and Phenotypes of Longhorn Cattle Horns.

Exploring Genotypes and Phenotypes of Longhorn Cattle Horns.

Similar presentations

Ads by Google