Genomic selection

  • Thread starter Thread starter Cork
  • Start date Start date
C

Cork

Guest
Was at a Barley breeder presentation in Cambridgeshire today.

The breeder of Saffron, Cassia and Tower went through the process of Genomic Selection with us. Also known as Genetic marking.

This technology was originally developed in Bull selection and has only been applied to crop breeding in recent years.

It points towards really exciting times ahead for the creation of new varieties of all crops.
 
CORK said:
Was at a Barley breeder presentation in Cambridgeshire today.

The breeder of Saffron, Cassia and Tower went through the process of Genomic Selection with us. Also known as Genetic marking.

This technology was originally developed in Bull selection and has only been applied to crop breeding in recent years.

It points towards really exciting times ahead for the creation of new varieties of all crops.
Click to expand...

Laymans language.. what can we expect to see happen? will this speed up the breeding process, could we see a big jump in yields in the future, less chemical usage?
 
ithastopay said:
Laymans language.. what can we expect to see happen? will this speed up the breeding process, could we see a big jump in yields in the future, less chemical usage?
Click to expand...

Yep, speed up the breeding process greatly which in turn should bring improved varieties faster.

Basically it uses chemical markers to identify positive and negative genes in new crosses without having to grow them out to see how they perform.
 
If Larry David was here now, he'd be trying to convince you that if you mixed two varieties of genomically selected barley seed together, that you'd end up growing a field of cabbage.

Posted from the Ham Bone using Crapatalk 2
 
bruceythom said:
If Larry David was here now, he'd be trying to convince you that if you mixed two varieties of genomically selected barley seed together, that you'd end up growing a field of cabbage.

Posted from the Ham Bone using Crapatalk 2
Click to expand...

the late larry did use genomic iirc I think he was using aftershock:ohmy:
 
CORK said:
Yep, speed up the breeding process greatly which in turn should bring improved varieties faster.

Basically it uses chemical markers to identify positive and negative genes in new crosses without having to grow them out to see how they perform.
Click to expand...

Thanks Cork.:thumbup:

How long do you think before we see all of this implemented on a commercial basis rather than just for scientific purposes?
 
It's unbelievable how genomic selection has increased the speed dairy bulls come online. It's nearly impossible to keep up with them at this stage!

It certainly sounds very exciting! However with genomic bulls you need to use a team of bulls as on average the predicted performance of the team of bulls will be fairly accurate, but individual bulls within the team could perform far better or worse than predicted. Does this mean that we would still need a few years of crop trials for new varieties before it would be safe to recommend them, considering that it would not really be practical to grow a large number of varieties (ie a team of varieties) except on large tillage farms.
 
CORK said:
Was at a Barley breeder presentation in Cambridgeshire today.

The breeder of Saffron, Cassia and Tower went through the process of Genomic Selection with us. Also known as Genetic marking.

This technology was originally developed in Bull selection and has only been applied to crop breeding in recent years.

It points towards really exciting times ahead for the creation of new varieties of all crops.
Click to expand...

Did they mention if they using SNPs or microsatellites? I know there's attempts to use genomics in potato breeding using microsatellites, wondering if it's the same?
 
nashmach said:
Thanks Cork.:thumbup:

How long do you think before we see all of this implemented on a commercial basis rather than just for scientific purposes?
Click to expand...

It has only got going in a big way over the past 4-5 years, this means we are just starting to see the first varieties coming into trials.
 
mixedbag said:
It's unbelievable how genomic selection has increased the speed dairy bulls come online. It's nearly impossible to keep up with them at this stage!

It certainly sounds very exciting! However with genomic bulls you need to use a team of bulls as on average the predicted performance of the team of bulls will be fairly accurate, but individual bulls within the team could perform far better or worse than predicted. Does this mean that we would still need a few years of crop trials for new varieties before it would be safe to recommend them, considering that it would not really be practical to grow a large number of varieties (ie a team of varieties) except on large tillage farms.
Click to expand...

You're spot on there [MENTION=3923]mixedbag[/MENTION]

Yes, varieties still need to be trialed as this tool really only gives an early indication of the traits that the new cross is likely to carry.

A barley chromosome carries 5 billion genetic pairs (genes) on it. Geneticists know what a lot of the genes do but there is also a lot of genes in between which do something but nobody knows what!

Genomic selection basically acts as a "filter" which can separate out a lot of the rubbish and good crosses early on in the breeding process.

As time goes on, they are discovering what more and more of the genes actually do. Eventually the dream is that they will know all the detail and a new variety can be picked out without ever having to put it through plot trials - this is many many many years away though.

In its current state, this technology is already a great tool at speeding up the development of new varieties.
 
TMKF said:
Did they mention if they using SNPs or microsatellites? I know there's attempts to use genomics in potato breeding using microsatellites, wondering if it's the same?
Click to expand...

Yep, they did discuss SNP's but I didn't hear anything about microsatellites - perhaps these are specific to potato breeding?

They tried to keep it as simple as possible to avoid confusing us!!
 
CORK said:
Yep, they did discuss SNP's but I didn't hear anything about microsatellites - perhaps these are specific to potato breeding?

They tried to keep it as simple as possible to avoid confusing us!!
Click to expand...

Ah ok, yea older forms of genomics, including the first cattle genomics used microsatellites before starting using more accurate SNPs

Whole thing is really fascinating
 
You must log in or register to reply here.
Back
Top