Canadian Science Publishing

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Inheritance and microsporogenesis of a synaptic mutant (sy-2) from Solanum commersonii Dun.
Canadian Science Publishing - Tập 28 Số 4 - Trang 520-524 - 1986
Stephen Albert Johnston, R. W. Ruhde, Mark K. Ehlenfeldt, R. E. Hanneman
A mutant has been found in diploid Solanum commersonii (2n = 2x = 24) in which no bivalents are formed during microsporogenesis. This trait, a simply inherited recessive, has been designated sy-2. It conditions high levels of pollen sterility through random chromosome segregation at anaphase I. Only the nucleolar-associated chromosomes appear to segregate non-randomly, possibly due to the fusion o... hiện toàn bộ
COMPLEMENTARY GENIC COMPLEX FOR ANTHOCYANIN PIGMENTATION IN THE APICULUS OF RICE (ORYZA SATIV AL.)
Canadian Science Publishing - Tập 15 Số 4 - Trang 779-789 - 1973
M. V. N. Setty, B. Misro
The C-A-P genie complex for anthocyanin pigmentation in the apiculus of japonica rice has been recently found to be also applicable to indica rice. The present investigation reveals a considerable difference in the nature and the number of localization genes. Accordingly, the complementary genie complex for anthocyanin pigmentation in the apiculus of both japonica and indica rices is C-A-PaPbor C-... hiện toàn bộ
THE MUTAGENIC ACTIVITY OF 61 AGENTS AS DETERMINED BY THE MICRONUCLEUS, SALMONELLA, AND SPERM ABNORMALITY ASSAYS
Canadian Science Publishing - Tập 21 Số 3 - Trang 319-333 - 1979
W. Robert Bruce, John A. Heddle
A comparison of two rapid and inexpensive in vivo mammalian assays and the Ames Salmonella assay is presented for 61 agents; Acetylsalicylic acid; Acriflavine; Actinomycin D; 2(2-furyl)-3-(5-nitro-2-furyl)acrylamide (AF-2); Aflatoxin B1; 2-aminofluorene; Aminopterin; Aroclor 1254; Ascorbic acid; Azathioprine; Benzo(a)pyrene; 5-Bromo-2'-deoxyuridine; Busulphan; Butylated hydroxytoluene; Cadmium chl... hiện toàn bộ
TEMPERATURE-SENSITIVE MUTATIONS IN DROSOPHILA MELANOGASTER.: II. FREQUENCY AMONG SECOND CHROMOSOME RECESSIVE LETHALS INDUCED BY ETHYL METHANESULFONATE
Canadian Science Publishing - Tập 10 Số 2 - Trang 412-420 - 1968
David L. Baillie, David T Suzuki, Mary Tarasoff
Recessive lethal and semilethal mutations induced in chromosome 2 by ethyl methanesulfonate were screened for temperature-sensitivity. Mutants which survive at 17 °C but die at 29° were recovered. At 0.005M EMS, 37.5% of the treated chromosomes were found to be lethal or semilethal from which it is estimated that 10.9% of all EMS-induced lethals are ts. This class of conditional lethals promises t... hiện toàn bộ
INHERITANCE OF A SOYBEAN FLOWERING RESPONSE TO FLUORESCENT-DAYLENGTH CONDITIONS
Canadian Science Publishing - Tập 13 Số 4 - Trang 703-707 - 1971
R. I. Buzzell
The inheritance of flowering time was studied in the short-day soybean, Glycine max (L.) Merr., under long-day conditions in the greenhouse using natural day length extended to 20 hours with cool-white fluorescent light. A single, major gene with two alleles was found to control the flowering response. The dominant allele which gave a fluorescent-sensitive response of delayed flowering also result... hiện toàn bộ
Chromosome location of genes controlling aluminum tolerance in wheat, rye, and triticale
Canadian Science Publishing - Tập 26 Số 6 - Trang 701-705 - 1984
A. Anioł, J. P. Gustafson
'Chinese Spring' wheat nullisomic–tetrasomic and ditelosomic lines were used for the identification of Aluminum-tolerance genes in wheat (Triticum aestivum L. em Thell.). Rye additions and substitutions in different wheat varieties were used for the identification of aluminum-tolerance genes in rye (Secale cereale L.). The point where concentrations of aluminum caused irreversible damage to the ro... hiện toàn bộ
CHROMOSOMAL ANALYSIS OF 159 BOVINE EMBRYOS COLLECTED 12 to 18 DAYS AFTER ESTRUS
Canadian Science Publishing - Tập 22 Số 4 - Trang 615-626 - 1980
W. C. D. Hare, Elizabeth L. Singh, K.J. Betteridge, M.D. Eaglesome, G.C.B. Randall, Daniel A. Mitchell, R. J. Bilton, Alan Trounson
One hundred and fifty-nine embryos were analysed in conjunction with embryo transfer studies. Chromosome preparations were made from small biopsy fragments of trophoblast, from large portions of trophoblast and the inner cell mass, or from the entire embryo. Results obtained from fragments were similar to those obtained from large portions of trophoblast and inner cell mass. No structural chromoso... hiện toàn bộ
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