Silicon Investor (SI) -- The First Internet Community

STOCKTALK

We've detected that you're using an ad content blocking browser plug-in or feature. Ads provide a critical source of revenue to the continued operation of Silicon Investor. We ask that you disable ad blocking while on Silicon Investor in the best interests of our community. If you are not using an ad blocker but are still receiving this message, make sure your browser's tracking protection is set to the 'standard' level.

Politics : PRESIDENT GEORGE W. BUSH -- Ignore unavailable to you. Want to Upgrade?

To: DMaA who wrote (25002)	7/20/2000 3:12:23 PM
From: TigerPaw	Read Replies (1) \| Respond to of 769667

How can it be said that dogs and wolves have split genetically when the two can interbreed? As I have maintained earlier, species via sexual gene cross checking and digital reproduction of the DNA sequences tend to be very stable. This can allow for populations which have not bred together for vast stretches of time to still be fertile, so long as they were not under selection pressures that pulled them strongly in different niches. There have probably been re-introduction of wild wolf genes into the dog family on a reasonably frequent basis (by putting baby wolves with mother dogs). TP

To: DMaA who wrote (25002)	7/21/2000 3:04:58 AM
From: nihil	Respond to of 769667

There are clear differentiations in mitochondrial DNA that allow the identification of different maternal lines of descent. These different strains do not interfere with interbreeding, but show that interbreeding has not occurred. Similarly, there are differentiated lines of male descent shown in y chromosomes. Dogs and wolves can interbreed, as also can some other members of the Canidae (e.g. coyotes). Dog owners have known forever that one can invigorate his dogs lines by tying out bitches in heat to be bred by wild wolves.