Re: HYB: genetic drift
- To: iris-talk@onelist.com
- Subject: Re: [iris-talk] HYB: genetic drift
- From: D* G* H*
- Date: Fri, 7 May 1999 06:33:44 -0600
- Priority: normal
From: "David G. Holm" <sherlock@amigo.net>
On 25 Apr 99, at 7:17, Linda Mann wrote:
> any idea of what proportion of rejects show up? Would that be
> likely to be comparable to the proportion of mutations that might affect
> less visible characteristics, such as the ones we were talking about in
> irises (water relations, temperature adaptability (frost), temperature
> thresholds for bud break, ..)?
Sorry for the delay in responding to your email. Generally mutations result
in undesirable changes, but not always. The rate of mutation varies
between cultivars and expression may be affected by altitude and latitude.
Some characteristics may be more likely candidates for mutation than
others as well. Yes, the "less visible" or quantitative traits can also be
affected in similar proportions as the gualitative traits.
Dave
Dave Holm
Professor of Horticulture (Potato Breeding)
Colorado State University
sherlock@amigo.net
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