Hinny – Wikipedia, the free encyclopedia

http://en.wikipedia.org/wiki/Hinny

Here’s a fascinating article about hinnies, which are essentially mirror image mules. The animal is new to me, and the genetics involved are pretty mind-blowing. (Real-life chimerae?!) Just be warned that extended reading will start to sound like a Newsradio sketch.

* Mule mares pass along 100% of their maternal genes to their offspring, rather than a mix. Since a mule’s mother is a horse, as a rule mule mares pass genes which are 100% horse to their foals. Thus, a mule mare bred to a horse stallion will produce a foal which is 100% horse, with no donkey genes at all.

* In China in 1981, a hinny mare proved fertile with a donkey stallion. Scientists expected a 100% donkey foal if the female hinny had passed on her maternal chromosomes the same way as female mules do. However, when the Chinese hinny was bred to a donkey jack, she produced “Dragon Foal,” who resembles a donkey with mule-like features. Dragon Foal’s chromosomes and DNA tests confirmed that she was a previously undocumented combination, not 50% donkey, from her donkey father, and 50% horse, from her hinny mother. Instead of each gene pair being donkey-horse, with one left over, Dragon Foal has a combination of gene pairs that are donkey-horse and donkey-donkey, with one left over. Her hinny mother passed along a combination of horse and donkey genes. Instead of a simple hybrid, Dragon Foal is a genetic chimera.

This entry was posted in animals and tagged , , , . Bookmark the permalink. Post a comment or leave a trackback: Trackback URL.

Post a Comment

Your email is never published nor shared. Required fields are marked *

You may use these HTML tags and attributes <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>

*
*