geeta at life.bio.sunysb.edu
Wed Mar 21 21:21:52 EST 2001
On Wed, 21 Mar 2001, michael kahn wrote:
> In article <188.8.131.52.20010317024720.006a89a8 at thuban.ac.hmc.edu>,
> purves at THUBAN.AC.HMC.EDU (Bill Purves) wrote:
> > At 05:17 PM 3/16/01 +0000, John E. Silvius wrote:
> > >Question of the day: Can anyone report the haploid (n) number of
> > >chromosomes in Allium? I read the interesting fact that Allium cepa
> > >has 4.4 billion N-base pairs but couldn't locate reference to
> > >chromosome number.
> Check out http://www.kean.edu/~breid/chrom2st.htm, which has numbers and
> references for many different plants and animals. Onion, shallots and
> chives are all listed as 2n = 16, ramsons (wild garlic, Allium ursinum)
> as 2n = 14.
Also check http://www.rbgkew.org.uk/cval/database1.html, which has
information on both chromosome numbers and C-values in pg per nucleus.
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