Is there more than one polled mutation?

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aj

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I was reading a ABS semen catalog. There is a black Simmental named Catalyst. It said that tests were being run on his status for both polled mutations. Never thought much about this. Is there a polled mutation for angus and a different one for other breeds?
 

aj

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Thanks. I guess I'll have to assume that their was a Polled Simmental line and the polled Angus line.......and that they are different. But still the polled Simmental I figured......picked up the polled factor from a British Breed in the grading up process to a purebred Simmental level. I guess it could have come from a polled Herford or Shorthorn base though.
 

knabe

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there are polled fullblood simmental and not bred up.


the gene is the last one on a chromosome and supposedly subject to mutation more so than other genes for some resason.


it would be interesting to survey angus and see if they all had the same mutation.


i find it extremely interesting that fullblood maine's had at least two independent events after being brought over from france and that no known event is known to have occurred in france.


it would be interesting to find out why it is associated with a relaxed prepuce, supposedly harder doing, and hip structure in some animals. of course genes express in different tissues at different times.
 

Lucky_P

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knabe,
Polled bulls have absence or hypoplasia of the retractor prepuce muscles... hence the propensity to preputial prolapse and inability, in some cases, to 'keep it pulled in'.
Perhaps the genes that would code for development of those muscles are in the vicinity of or are influenced the polled gene? 
 

aj

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Name some polled fullbloods? I don't doubt you knabe just need a pedigree to search. Were the polled fullbloods......fullbloods or just fullbloods on paper? Were they bred in the old country or here and were they parentally verified?
 
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