Amy Hicks <[EMAIL PROTECTED]> wrote
>>From: "g. m." <[EMAIL PROTECTED]>
>>Reply-To: "g. m." <[EMAIL PROTECTED]>
>>To: [EMAIL PROTECTED]
>>Subject: Re: :B Odd Birth
>>Date: Fri, 4 Aug 2000 12:36:37 -0400
>>
>>Amy H. - Are the parents both spotted? Maybe they had 4 twins each and
>>the undeveloped twin carried the Lethal gene. But because of the other
>>twin it couldnt be completly absorbed.
>
>I was under the impression that SpSp gerbils never developed at all, though
>I am not certain of the stage at which the fertilized egg ceases to
>develop... But, if there was one placenta per gerbil, that would suggest
>that each pair was identical. If SpSp were the case, then both would be
>SpSp, and neither would have developed. Is this correct reasoning?
>
>At any rate, the parents are both spotted. Their genotypes:
>Mother: AaC*e(f)e(f)GgppSp+ born October 1999
>Father: aaCCee(f)ggPPSp+ born July 1999
>This pair was separated after the conception of this last litter, but they
>produced three healthy litters prior to this. Both parents had produced
>litters with other mates prior to being paired.
>
>Amy H. aka MScottMGP
The death of lethal spotted animals in other species occurs during
neural tube development. IE, at the very beginning of the development of
the central neural system.
--
Julian
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* Jackie and Julian *
* [EMAIL PROTECTED] *
* National Gerbil Society *
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