Allelism
testing of miscellaneous stocks in Maize COOP phenotype only collection
--Jackson, JD
This report summarizes allele testing of
miscellaneous stocks characterized by phenotype only in the Maize Genetics
COOP Stock Center collection. Some of these stocks have been found in other
COOP stocks and some have been sent in by cooperators over the years. In
most cases crosses were made between known heterozygotes and homozygous
plants. Plants were scored at the seedling stage and again at maturity.
Proposed new designations have been assigned to these alleles. These stocks
have been increased and placed on the 2000 stocklist. It is expected that
with further sorting and allelism testing of mutations characterized by
phenotype only, additional alleles of characterized mutants will be discovered
and placed in the main collection.
| previous
designation |
allelism
test with ra1 |
allelism
test with ra2 |
new designation |
| ra*-PI262495 |
positive
(ra*/ra1= 24/24 plts.)
(+/ra* // ra1=10/24) |
negative |
ra1-PI262495 |
| ra*-4889 |
negative
(+/ra* // ra1=0/90) |
negative
(+/ra* // +/ra2=0/96) |
|
| |
|
|
|
note: ra1-PI262495 tassel has
good ra1 phenotype. Ear has weak or no ramosa phenotype.
gs1-PI262495 may segregate in this stock.
note: ra*-4889 has ramosa-like
tassel; ear has no ramosa phenotype.
| previous
designation |
allelism
test with ps1-Sprague |
|
new designation |
| ps*-8205 |
positive (3
out of 3) |
|
ps1-8205 |
| |
|
|
|
| |
|
|
|
| previous
designation |
allelism
test with gl1 |
allelism
test with gl8 |
new designation |
| gl*-dy |
positive (2
out of 2) |
negative |
gl1-dy |
| |
|
|
|
| |
|
|
|
note: gl1-dy traces back to Coop1953-159:
Nelson 9947-4. This is also source of mn1 & dy1.
Please Note: Notes submitted to the Maize Genetics Cooperation Newsletter may be cited only with consent of the authors.
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