GENEALOGY-DNA-L Archives

Archiver > GENEALOGY-DNA > 2011-10 > 1318261380


From: "Kenneth Nordtvedt" <>
Subject: Re: [DNA] Tree Software Challenge
Date: Mon, 10 Oct 2011 09:43:00 -0600
References: <16B26CE212944C64ACC03D04D95B561D@kenPC><B4BCC68D-D53E-434B-A107-5E3F491ADDEA@gmail.com>
In-Reply-To: <B4BCC68D-D53E-434B-A107-5E3F491ADDEA@gmail.com>


I am interested in deeper tree times. And the true tree and true location
of the STR mutations in the tree must be known and deposited in the lock
box. I don't see how your situation could so this.

-----Original Message-----
From: John M Rhodes
Sent: Monday, October 10, 2011 9:36 AM
To:
Subject: Re: [DNA] Tree Software Challenge

Ken, can you do it with a couple families of I1* folks?

Sent from my iPhone

On Oct 10, 2011, at 11:09 AM, "Kenneth Nordtvedt" <>
wrote:

> From time to time people discuss software they are using to reconstruct
> trees from a collection of final STR haplotypes. I’m wondering if any
> blind tests have been done, or whether any people with such software wish
> to try a blind test?
>
> I can produce a collection of a few dozen haplotypes, each of 20 or so
> STRs, and all descendants from a common ancestor from about 100
> generations ago. I will know the true demographic tree, and furthermore I
> will know on which
> tree branch segments each of the STR mutations happened on. But this
> information will be withheld; only the final several dozen haplotypes will
> be given along with the mutation rates for each of the STRs.
>
> The quality of the software reconstruction or inference of the tree along
> with its estimate of STR mutation locations (if the software includes
> such) can then be made after the software does its thing.
>
> Any takers? I am particularly interested in how the software fares in its
> reconstruction of the earliest era of the tree.
>
> Ken
>
>
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