You are here

MLL Gynogenesis - PP

Submitted by mtracy on Sat, 11/10/2018 - 12:35


Some fish species reproduce through a method of parthenogenesis called gynogenesis, in which a female will produce an already fertilized and viable egg. This method may be observed in Poeciliopsis monocha and Poeciliopsis lucida. Normally there is a breeding population of diploid fish of each of these species. However, there is also a triploid population of female only monocha-lucida-lucida fish (MLL). These fish produce triploid MLL eggs. Oddly enough, even though there is no genetic transfer between egg and sperm, a diploid lucida sperm is still required in order to activate the MLL egg. Once activated, this egg will develop into a female MLL adult. The fish that comes from this egg is always a triploid female, a genetic clone of its mother and all the fish in its lineage before it.



This is a well written paragraph. The only suggestion I can make is to start the paragraoh with a better introduction senetnce that will cover the entire topic of the paragraph and grasps the readers attention.

After reading about the MLL eggs i yearn for more detail. Is the egg already fertilized? Why is a diploid sperm required for a triploid egg? Such details would have been benefiscila in the paragraph. Otherwise, i found it very insteresting that such a phenomena occurs. Great paragraph!

Nice job, my only suggestion would be to provide an abbreviated scientific name after each species listed, for example by adding (P. lucida) after Poeciliopsis lucida. This will make it easier to reference the species later on in your writing.