Inbreeding- Module 6.2
One benefit of inbreeding I can think of is acquiring certain
preferred traits. One common example of inbreeding that I can think of is with
dogs. When a specific dog breed is wanted or specific traits unique to a
particular dog, inbreeding could be used to acquire those. With that, the gene
pool would be fairly small and there wouldn’t be many as much genetic
diversity. This is when assortative mating would be more common. This is when the
preference to choose mates with similar phenotypes increases.
However, inbreeding also comes with many disadvantages. Recessive
phenotypes could be more prominent with inbreeding, which could be a negative impact
of the recessive trait is damaging. If too many recessive genes are inherited, they
will be carriers for varying diseases. With that, there are many underlying health
conditions that the animal would be predisposed to.
I guess one factor of inbreeding in terms of evolution would
be that if we were wanting an animal to adapt to a trait that is common within the
family, then that animal would have to spend less time evolving. On the other
hand, if the animal had to adapt to a trait that is not as common, it would
spend more time evolving since its gene pool is very specific to its family.
Hi,
ReplyDeleteI think you reasons for a population to want to inbreed are very good. I like how you connected it to something like dogs, which makes this very easy for anyone to understand. I also agree that one big disadvantage would be those recessive genes becoming more prominent because organisms in the population are inbreeding.