HGG Community Forums

Baya · Dec 10, 2015 3:56 AM

http://hj2.huntandjump.com/horse.php?horseid=318051

So this is the sire to this filly

http://hj2.huntandjump.com/horse.php?horseid=324218

Is it true since he is Homozygous Nexus that even though the mares he is bred to who dont have nexus his foals will always be nexus?

Abbey Road · Dec 10, 2015 9:08 AM

Yes. The same for any other gene that is homozygous... if the gene is dominant (Nexus is), it will show on every foal unless some other factor is preventing it (for example, silver won't show on a chestnut). If it's recessive, you will not see it on a heterozygous horse, but the horse is carrying it and can pass it on.

You can tell from the genes on a tested horse which are dominant and which are recessive.

EE aA CC dd gg Ff SSsty PP sasa KitKitto SpsSp WF: Minimal

When you read the horse's testing, genes that are recessive are lower-case when present. Satin, for example, is sa. So if you see sasa on a horse's color test, it's homozygous for satin and will always pass it on. Sasa means it's heterozygous (the Sa means not carrying, the sa means carrying).

Dominant genes are capitalized, so ChCh means homozygous champagne (champagne is dominant).

Obviously the gene test doesn't matter for genes that don't test such as DP and Nexus, GP and KP. So the only ways to know for sure a horse that has a recessive gene that is not testable are:
1) It has a homozygous parent
2) It produces a homozygous foal.

And the same is true if there's some other reason the gene is hard to see. Cremello hides a lot, for example.

Because Interstellar is homozygous for nexus, your filly is definitely carrying it, even though it's a bit hard to see on her. I suspect it'll be easier to see when she is an adult, and if it isn't, you can always reroll and see if it shows up better.

Make sense?

Abbey Road · Dec 10, 2015 9:17 AM

So if you bred your filly to a stallion who is homozygous for nexus (going to be tough to find in 2nd gen), you have a 50% chance of a homozygous foal with all the wild blue patterns. If you breed to a heterozygous stallion (carrying one copy) you have a 25% chance of a homozygous blue foal, and also a 25% chance that the foal won't be carrying nexus at all.

Let's pretend it's testable and call it Nex (capitalized because it's dominant).

Nexnex
(got gene from dad, not from mom, will have stars but not blue)

nexNex
(got gene from mom, not from dad, will have stars but not blue)

nexnex
(neither parent passed it on, no nexus)

NexNex
(you hit the jackpot, both parents passed it on, and you have little Psychedelic junior)

You won't see any of this going on because there's no test, but that's essentially what's happening.

So your filly is Nexnex.

If you breed to a stallion not carrying nexus, you have a 50% chance of the foal carrying heterozygous nexus, but zero chance of blue, because the sire doesn't have it.

Abbey Road · Dec 10, 2015 9:19 AM

I think I am simplifying a bit, but you get the idea. :)

Baya · Dec 10, 2015 9:26 AM

Haha little pyscadelic jr funny abbey

Ritsika · Dec 10, 2015 11:38 AM

What does KP stand for? How does it show up on a horse?

And is GP short for gulastra plume?

RoseFlute · Dec 10, 2015 12:03 PM

KP stands for Kit Promoter, and only shows up if it's Homozygous. It also doesn't show up in the gene test. It looks somewhat like clouds. I'll leave it up to someone who has one to post a picture.
GP stands for Gulastra Plume, yes. :D

Baya · Dec 10, 2015 12:05 PM

Ritsika kp stands for Kit promoter

In order for kp to show up it has to have two kit genes, ( ex. Tobiano, sabino 1 2 or 3, white 1 2 3 or 4, roan)

http://hj2.huntandjump.com/horse.php?horseid=234535

That is my only KP mare, kp makes patches of white/fog on the horse.

http://hj2.huntandjump.com/horse.php?horseid=312994

This mare of mine her mother is a homozygous kp carrier. A horse must have two kit genes for kp to show up. The mares sire is the son of a kp carrier, ( cloudy skys is the half sister of http://hj2.huntandjump.com/horse.php?horseid=240593 that stallion)

Im not sure if this is how it works but abbey road could explain more than me

Abbey Road · Dec 10, 2015 3:56 PM

I think you did just fine Baya. :)

Here's what Gulastra Plume looks like.

It's the way the tail looks, kind of greyed out. If you google it you'll see some live horses with it. It only shows up on bay horses (or agouti, like buckskin, brown, wild bay, amber/sable champagne, etc., though the images don't always generate the tail on some of the newer colors).

KP has those foggy markings like Baya showed, although sometimes it's such a tiny whisp that it's easy to miss, and other times huge parts of the horse are fogged out. Here are my homozygous ones.

http://hj2.huntandjump.com/adv_search.php?status=any&ageg=&agel=&agee=&erag=&eral=&erae=&f_basic=none&f_adv=none&tattoo=&f_limit=25&stallion=1&mare=1&gelding=1&spayedmare=1&name=KK&name_lm=like&color=&color_lm=like&bty=1&lined=lined&foundation=1&sire=&dam=&barn=&owner=382&breeder=&e1=&e2=&a1=&a4=&a2=&a3=&f1=&f2=&p1=&p2=&s1=&s2=&s3=&c1=&c2=&c3=&d1=&d2=&g1=&g2=&ch1=&ch2=&z1=&z2=&sa2=&sa1=&kit1=&kit2=&kit3=&kit4=&kit5=&kit6=&kit7=&kit8=&kit9=&kit10=&sp1=&sp2=&sp3=&pax31=&pax32=&rb1=&rb2=&o1=&o2=&l1=&l2=&ice1=&icei=&ice2=&ice3=&ice4=&ice5=&ice6=&ice7=&ice8=&brindle1=1&brindle2=1&wf1=1&wf2=1&wf3=1&wf4=1&wf5=1&wf6=1

I love KP because it's always different... whereas right now your White 4 often generates the same patterns, KP almost never looks the same on two horses (Ammit is in the process of updating the image generator so that all colors are dynamically generated).

Ritsika · Dec 10, 2015 10:18 PM

Thank you! Roseflute, Baya, and Abbey Road, you have all been very informative. I appreciate it. :)

Abbey Road, all of your homozygous KP are beautiful! Now I have something to aspire towards.

Members log in here:
Username:
Password:
By hitting the above you signify that you agree with our rules and conditions.
Forgot your password?

HGG Community Forums

Join our discord server!

Howdy, Stranger!

Categories

In this Discussion

Who's Online (0)

Join our discord server!

Enlarge Your Pastures

Reminders!