Genetic knowitalls take notice! Lol - The Horse Forum

 19Likes
Reply
 
LinkBack Thread Tools
post #1 of 47 Old 01-20-2013, 02:04 AM Thread Starter
Yearling
 
Join Date: Nov 2012
Location: Saskatchewan Canada
Posts: 1,376
• Horses: 3
Genetic knowitalls take notice! Lol

Okay, so I am not planning on breeding a horse anytime in the next 10 years.

I am very curios though to this:

Lets say a stallions can only produce dun horses. You breed him to a mare that can only produce lets say black horses.

What will the foal turn out to be, because the sire and the dam can only produce 1 colour of foal... but different colours.

I am just curios, so please share your thoughts.
Breezy2011 is offline  
Sponsored Links
Advertisement
 
post #2 of 47 Old 01-20-2013, 04:49 AM
Foal
 
Join Date: Dec 2012
Posts: 202
• Horses: 2
I am by no means an expert, but I would say either grulla (black dun) or bay dun depending on the agouti status of both parents. Homozygous black means they will never produce a red based foal. Bay, brown, black, grulla, etc are all black based either with or without modifiers, and all can be homozygous for black without actually being black.
Posted via Mobile Device
Blue Smoke is offline  
post #3 of 47 Old 01-20-2013, 05:03 AM
Trained
 
Join Date: Aug 2010
Location: Perth, Western Australia
Posts: 5,153
• Horses: 0
Quote:
Originally Posted by Breezy2011 View Post
Okay, so I am not planning on breeding a horse anytime in the next 10 years.

I am very curios though to this:

Lets say a stallions can only produce dun horses. You breed him to a mare that can only produce lets say black horses.

What will the foal turn out to be, because the sire and the dam can only produce 1 colour of foal... but different colours.

I am just curios, so please share your thoughts.
This is where you are underthinking it. Dun is a modifier, not a colour.

There are only two colours of horse - red (chestnut) and black. Everything else, every other colour in the miriad of coats in the horse world, are modifications of these two bases.

This guy is homozygous for black:



This girl is homozygous for dun:



Now, without being facetious, I can tell you are talking about your filly. That does narrow it down somewhat, because we can see what she carries (mostly). However, without knowing what else the stallion has, and without knowing if your filly is EE or Ee, there is no way to narrow down what colours to expect.

Mods, grant me the serenity to see the opinions I cannot change, courage to change the ones that should change, and the wisdom to spot the trolls.
Chiilaa is offline  
post #4 of 47 Old 01-31-2013, 11:37 AM Thread Starter
Yearling
 
Join Date: Nov 2012
Location: Saskatchewan Canada
Posts: 1,376
• Horses: 3
Thanks, but I was actually not talking about my filly, I was talking about, any horse because I am curious! Although, if I ever decide to breed, this would be good to know (but I will unlikely breed HER ever)

Okay, so lets say a stallion could only produce chestnut and the mare could only produce black?

Does that make a little more sence? One base colour can only be produced by each of the horses.

What would the foal be?
Breezy2011 is offline  
post #5 of 47 Old 01-31-2013, 11:47 AM
Yearling
 
Join Date: Jan 2010
Location: Stroudsburg, Pa
Posts: 984
• Horses: 4
If you breed a homozygous red(ee) to a homozygous black with no agouti(EE) you get a heterozygous black(Ee). "E" is dominant over "e".

ETA- That is barring any genes that don't express on the base color(silver and agouti on chestnut, cream on black, etc)
kassierae is offline  
post #6 of 47 Old 01-31-2013, 11:50 AM Thread Starter
Yearling
 
Join Date: Nov 2012
Location: Saskatchewan Canada
Posts: 1,376
• Horses: 3
Okay, that makes sense, and what if they were both EE or ee? I am just trying to learn a little more about genetics!
Breezy2011 is offline  
post #7 of 47 Old 01-31-2013, 11:52 AM
Yearling
 
Join Date: Jan 2010
Location: Stroudsburg, Pa
Posts: 984
• Horses: 4
Two homozygous black(both EE) would make black. The only gene they can produce is E. Two chestnuts(always homozygous ee) make chestnut.
kassierae is offline  
post #8 of 47 Old 01-31-2013, 11:53 AM
Yearling
 
Join Date: Oct 2010
Location: Texas
Posts: 976
• Horses: 6
If one parent is EE (homozygous black) and the other parent is ee (homozygous red) They will give one black gene and one red gene. BUT black is dominant and red is recessive meaning that the black COVERS the red. So the horse will be black based always. BUT it also means that the resulting foal could GIVE a red gene and have a red foal.
TexasBlaze is offline  
post #9 of 47 Old 01-31-2013, 11:54 AM Thread Starter
Yearling
 
Join Date: Nov 2012
Location: Saskatchewan Canada
Posts: 1,376
• Horses: 3
Okay thanks! So for any two black horses bred, you will always get a black?
Breezy2011 is offline  
post #10 of 47 Old 01-31-2013, 11:57 AM
Yearling
 
Join Date: Oct 2010
Location: Texas
Posts: 976
• Horses: 6
Not always. Ee (black with a red recessive gene) bred to a Ee (black with red recessive) have a 25% chance of throwing a red gene per parent and producing a ee or red foal.
WyndellaRose likes this.
TexasBlaze is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the The Horse Forum forums, you must first register.

Already have a Horse Forum account?
Members are allowed only one account per person at the Horse Forum, so if you've made an account here in the past you'll need to continue using that account. Please do not create a new account or you may lose access to the Horse Forum. If you need help recovering your existing account, please Contact Us. We'll be glad to help!

New to the Horse Forum?
Please choose a username you will be satisfied with using for the duration of your membership at the Horse Forum. We do not change members' usernames upon request because that would make it difficult for everyone to keep track of who is who on the forum. For that reason, please do not incorporate your horse's name into your username so that you are not stuck with a username related to a horse you may no longer have some day, or use any other username you may no longer identify with or care for in the future.



User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.


Old Thread Warning
This thread is more than 90 days old. When a thread is this old, it is often better to start a new thread rather than post to it. However, If you feel you have something of value to add to this particular thread, you can do so by checking the box below before submitting your post.

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Genetic Disorders Survey Stripes Horse Health 0 02-01-2012 01:54 PM
genetic color question bjb Horse Colors and Genetics 18 01-23-2012 09:12 AM
Genetic Disease - would you? MacabreMikolaj Horse Breeding 42 07-31-2011 08:27 PM
Genetic Diseases farmpony84 Horse Health 5 07-27-2011 04:59 PM
Genetic disease? Barker Horse Health 8 08-08-2008 02:44 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome