柯利学堂系列之一----平毛与粗毛,不得不说的背毛遗传

phoebe1026

本文由美国Pennylane Collies犬舍主人Peggy Melton授权转载并翻译. 谢绝转贴. Coat Inheritance                                                                    背毛遗传 Here is the scoop about Rough and Smooth coats on Collies. I am no long-time expert, but I also had trouble understanding this. This explanation is very simple and intended for the beginner. I hope it will answer your questions. 下面我们来讲讲粗毛柯利和平毛柯利的背毛. 我开始研究这方面的时间不长,所以有时候也会觉得不大好懂. 下面的陈述,对于一个初学者来说,应该是浅显易懂的, 希望能帮助大家解答你们心中的疑问. The Smooth coat is a dominant gene. In order for a dog to be Smooth it must carry the dominant smooth gene...if it does carry the gene it is Smooth.. There is no such thing as a recessive smooth gene. 平毛基因, 是一个显性基因. 一只平毛的柯利,肯定有平毛基因....有平毛基因的柯利肯定也是平毛. 没有什么携带平毛基因的粗毛柯利这回事. If your dog is Rough it has no Smooth gene to pass on. The only way to get a Smooth from a Rough is to breed it to a Smooth. In that breeding, you will get some Smooth and some Rough..The Roughs again cannot produce a smooth, (the smooth gene is never a recessive remember) but the Smooths can produce Roughs as rough is carried as a recessive gene. 如果你的狗是粗毛柯利,那么它就没有平毛基因可以遗传给它的后代.想通过粗毛柯利繁殖出平毛柯利的唯一办法是,找个平毛柯利配种,这样你可以同时得到粗毛和平毛. 这样繁殖出来的粗毛柯利也不携带任何平毛的基因(因为平毛基因是显性遗传的).但是这样繁殖出来的平毛柯利是携带粗毛基因的,因为粗毛基因是隐性基因. If you breed two Smooths together (both having a rough parent therefor carring a rough recessive gene..you will get some Smooths WITH a recessive rough gene that can produce roughs. It inherited one dominante smooth gene and one recessive rough gene ...and some Smooths that will only produce Smooths as they inherited two Smooth genes, one from each parent, they have no recessive rough gene so they will not produce a Rough no matter what you breed it too, And, you may get a Rough (inheriting two recessive rough genes). Even a rough from two smooth parents cannot produce a smooth. It is never a recessive. 如果你用两只平毛柯利来繁殖 (假设两只平毛的都有一位粗毛的父或母,那么这两只狗都有隐性的粗毛基因.) 那么你将得到的是1携带粗毛基因的平毛小狗. 他们有一个显性的平毛基因和一个隐性的粗毛基因 2 不携带任何隐性粗毛基因的平毛小狗. 他们的基因座上只有2个显性的平毛基因. 这样的小狗,将来就算和粗毛柯利繁殖,也不会有粗毛的直系后代. 3 粗毛小狗(基因座上有两个隐性的粗毛基因.) 就算父母都是平毛所繁殖的粗毛小狗,也不会携带平毛基因,因为这个基因是绝对显性的. The people that say they do not want to use a smooth in their breeding program because they don't want to lose their nice full coat factor do not understand the genetics of the coat factor. Using a rough from a smooth parent will in no way make the rough hair less long..it never mixes. 有些人说, 他们会将平毛柯利排除在他们的繁殖计划中, 因为他们希望自己的狗能有漂亮丰满的背毛, 这些人其实一点都不理解背毛的遗传规律. 用平毛柯利所繁殖的粗毛柯利来繁殖从来不会使得自己后代的毛量减少, 因为这两种基因不会混合作用. You don't have to worry about a smooth coming along later in your breeding program either as I have heard some say......IT IS NEVER RECESSIVE. 所以不用担心你将来的繁殖计划中出现了平毛柯利的血统, 平毛基因从来就不会带来负面影响.                                                                           翻译 by phoebe

我爱桔子

非比来开始上课了~~~
拿个板凳学习中

phoebe1026

哇，桔子哇，不敢不敢:Smilies42

包丁

非非都是专业帖...不得不顶!!

爱狗不养狗

原帖由 我爱桔子 于 2007-12-21 16:50 发表
非比来开始上课了~~~
拿个板凳学习中

晕哦，桔子 你怎么也跑这来了

公主她爸

偶来学习的哈!!!!!!!!!!!!!!!!!!!!:Smilies44 :Smilies44

我爱桔子

原帖由 爱狗不养狗 于 2007-12-21 21:07 发表

晕哦，桔子 你怎么也跑这来了

HOHO，来凑热闹啊

QQ糖

学习了