Sunday 15 April 2012

WAC: Coloured Alpaca Genetics...as I understand it!

Now, I did promise that I would share some of my learning from the World Alpaca Conference...the problem is where to start. Our favourite lecture was the one on colour genetics presented by Dr Andrew Merriwether...he is a geneticists...I am not...but I will share the basics as I understood them:

Every alpaca has two copies of every gene (one from dam and one from sire). This also applies to the gene for colour. This is then expressed in the phenotype i.e the colour that you see...obvious so far...what was interesting was the dominance of colours...which is essentially white over fawn over brown over black (greys are another matter).

So a white alpaca may have 2 white genes or may have one white gene and one of another colour, depending on parents, but as white is dominant that will be the phenotype expressed. Therefore if a white alpaca has two white genes it will always have a white offspring, even when mated to a fawn, but the resulting off spring will have one white gene and one fawn (or brown or black depending on the second gene of the fawn and which has been passed on). So the white progeny (from the white and the fawn) is capable of having a fawn, if mated to a fawn ,depending on which gene is passed on.

Unfortunately it isn't quite as easy as this as Dr Merriwether has indentified through DNA testing; a white spot gene and a dark spot gene. It is possible for this to be expressed as masking the underlying colour (i.e one massive spot or sometimes just the extremeties show the underlying colour... for example a brown with a white moustache or foot may be a white with a brown spot gene). There is also a dillutional gene (not so common) that does what it says on the tin.

I did look for some work on the subject on the net and found some work that was done some time ago http://www.alpacagenetics.com/AndyMAlpacaWorldArticle6.pdf however the information presented at WAC was from more recent work completed.

Paul has now come up with lots of theories and is making plans to breed coloured alpacas with fleece qualities of whites...it is a ten year plan (at best depending on whether or not he manages to breed females)...and means that we cannot sell any alpacas until he see the results of his breeding plans...and he calls alpaca breeding MY hobby! I am actually going to let him test his theory, but only on 50% of our females...Cambridge Camilla and EP Cambridge Lady Gaga are definitely in my 50%!

Of course all this relies on the pedigree of the alpacas being correct. During the lecture on Expected Progeny Differences presented by Darby Vannier we were surprised to hear that when the alpacas submitted for the programe were DNA tested, 15% of them had been registered to the incorrect sire!

All of the lectures were packed full of information but some are difficult to share without the photos or notes. Now we are deciding if we can manage to get to the World Alpaca Confernce 2013...in New Zealand...we have had a kind offer of accomodation...so we are very tempted.

Although we have not got a great deal of stock left...we have Our Alpaca Shop up and running. Now to get some more products created...lots of decisions...too many for a Sunday!

12 comments:

  1. Dr Merriwether was a great speaker at WAC! Going to try and see if we can use what he said too to breed the colours we want :-D

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  2. Lovely shop and I already know how wonderfully soft and tactile your alpaca throws are - just gorgeous!

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  3. Hello. Yes was very good to hear what he had to say. Ann (his wife) always repsonds immediatly on questions about color and genetic disorders. For me Julio was far best the best speaker with a super / zooper intersting information. Will never find that. Second best was perhaps Andy. And I really enjoyed the history of alpaca-industry of Val. Was good to speak to you... I first didn't realise who you were. Sorry for that. Hope we can have a good conversation in NZ next year! Or otherwise at some shows in the UK.
    Will follow your blog more often... See you, many greetings and love from Holland, Leo

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  4. Very interesting, Barbara - from one who couldn't make the conference!

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  5. Nicely summarised Barbara - simple enough for sunday evening, and I even got an introduction to genetics from Joy so I could understand it (never took biology far at school)- and isn't it great to have a 10-year plan?!

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  6. A good synopsis Barbara! Went to the show in Bristol but wished we had made it to Oxford as well!

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  7. A good synopsis Barbara! Went to the show in Bristol but wished we had made it to Oxford as well!

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  8. I read an article of his a while ago now which was very interesting so bet it was great to hear him speak, thanks for the details.

    Hope Paul's plan works and you get the fawn and brown alpacas you planned!

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  9. So ....go on then ...whats the secret to the Greys !!....a 10 yr plan....oh really !! Its a life time's work .... I've got 6 yrs in .....and its just getting exciting !!......Jayne

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  10. Colour...so interesting. Have read lots on breeding greys. They are less predictable so all the more more exciting wondering what will arrive! We have had 3 grey crias, all very different and then after shearing, another surprise as they reveal their true colours!

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  11. Interesting blog, Barbara. Also had a look at your shop and web site for a change - great, well done. Shirley & Robbie

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  12. Love the shop design, great linking, and lovely photos. Brilliant. Can't wait to see the knits. Bev

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