CoP Appendix XI - Genetic Traits Exchange

Interbull Centre promotes the collection and facilitates the exchange and conflict resolution for several genetic traits, including recessive traits, via a dedicated module of the Interbull Data Exchange Area (IDEA) called AnimInfo (see Appendix X for more information on how the module works).

The Genetic Traits Exchange service is for the exchange of results from direct genetic test (direct genotyping) of the genetic traits listed for each specific breed. This means that organisations classical haplotype results or indirect test are excluded from the exchange.

Exchange of genetic traits through IDEA/AnimInfo gives several benefits, such as:

Information collected are shared 3 times per year, together with distribution of official international evaluations’ results, to all organisations having signed the specific service agreement (see Appendix I – letter of agreements for genetic traits exchange) and that regularly upload the latest information and actively participate in conflict resolutions.

A minimum requirement for upload is:

The service allows for an easier, safer, smoother and timely exchange of information among participating organisations regarding animals which have been tested carriers of important traits, including recessive traits, and facilitates identification of possible conflicting information and their resolution. Prior to the launch of the Interbull genetic traits exchange service, genetic traits information was exchanged manually and bilaterally between organizations. This was a sub-optimal procedure where often registration of genetic traits was incomplete leading to breeders being often not fully informed thus yielding a problem when carrier animals were mated

If conflicting information on a given type of information for the same animal is detected, the conflict needs to be resolved by the organisations and, if applicable, by the third parties that provided the conflicting information. If they cannot resolve the conflict, they have to contact the bull owner and ask for assistance. Until the resolution of the conflicts, both sets of data on the specific animal is disseminated. Following resolution, the correct information should be uploaded without undue delay. In order to assist with the identification of such conflicts, organisations will receive a report from Interbull Centre including all conflicts found in the system for a given trait.

The service is currently offered for the following breeds: Holstein and Brown Swiss.

Expansion to additional breeds, currently included in an international evaluation, is possible given that a set of standardized coding for the traits of interest is available for the breed at hand. Contact Interbull Centre for more information or for assistance on this step.

The genetic traits exchanged are based on direct genetic test results. The list of traits currently exchanged is reported in Table 1. Full list of codes and explanations are available inside IDEA/AnimInfo.

Table 1: List of traits currently exchanged (NOTE that only direct genetic test results may be uploaded. Haplotype and indirect test results must be excluded):

HOL

BSW

BLACK GENE

ARACHNOMELIA

BOVINE LEUKOCYTE ADHESION DEFICIENCY (BLAD)

BH14*

BLACK/RED GENE

BH2*

BRACHYSPINA

BETA CASEIN

CHOLESTEROL DEFICIENCY

FH2*

CITRULLINEMIA (CIT)

KAPPA CASEIN

COMPLEX VERTEBRAL MALFORMATION (CVM)

OH1*

DEFICIENCY OF URIDINE MONOPHOSPHATE SYNTHASE (DUMPS)

ANIMALS BORN HORNLESS (POLLED)

MULE FOOT

RENALE DYSPLASIA

ANIMALS BORN HORNLESS (POLLED)

SPINAL DYSMYELINATION (SDM)

RED GENE

SPINAL MUSCULAR ATROPHY (SMA)

VARIANT RED GENE

WDR19

FACTOR X1

BOVINE PROGRESSIVE DEGENERATIVE MYELOENCEPHALOPATY

RENAL DYSPLASIA

* Direct genetic tests, the reason for the naming ‘H' (for Haplotype) come from the fact that these loci were originally detected by Paul VanRaden’s homozygosity depletion approach. But only months later the causative mutations were identified

Participation to the service is subjected to a fee as reported in Table 2. The fee structure will be in place starting from year 2024.

Table 2 – Fee structure for Genetic Trait Exchange:

Exchange of information for:

Fee (in Euro)

One Breed

1 000

Any additional breeds

500 (per breed)

public/Appendix_XI_genetic_traits_exchange (last edited 2023-10-03 12:21:51 by Valentina)