Results 141 to 150 of about 6,984 (172)

Diploidy and dominance in artificial genetic search

Complex Syst., 1992
It has been theorized that in natural genetics, diploidy and dominance inrease the survivability of species in environments that vary with time. This paper examines the effects of diploid representations and dominance operators in genetic algorithms applied to non-stationary search problems.
Robert E. Smith 0001, David E. Goldberg
openaire   +2 more sources

GENETIC EVIDENCE FOR DIPLOIDY IN EQUISETUM

American Journal of Botany, 1986
Sporophytes and gametophytes of Equisetum arvense, E. laevigatum, and E. telmateia were analyzed using enzyme electrophoresis to estimate isozyme number. Despite their uniformly high chromosome numbers (2n = 216), these three species exhibited isozyme numbers typical of diploid seed plants for the enzymes AAT, ADH, ALD, GDH, [NADP]IDH, LAP, MDH, [NADP ...
openaire   +1 more source

Probable spermatozoal diploidy in the semen of a golden retriever

Andrologia, 2009
The semen of a 3-year-old golden retriever was examined for breeding purposes. When the morphology of the spermatozoa was analysed for the first time, 37% were observed to have giant heads. In most of the giant heads, a diadem defect was also found. The dog was successfully used for breeding.
M, Dahlbom, M, Andersson, J, Lähdetie, M, Vierula, M, Alanko   +4 more
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Parasite diversity and the evolution of diploidy, multicellularity and anisogamy

Journal of Theoretical Biology, 1990
It may be reasonably assumed that a diversity of parasite genotypes in any one cell or organism is more harmful than a population of uniform genotypes. If this is accepted the following consequences follow: (i) Parasite mixing, due to cytoplasm mixing, at the time of zygote formation is a new and additional cost of sex.
openaire   +2 more sources

Independent origins of diploidy in Metarhizium.

Mycologia, 2018
In fungi, stable diploid genome arrangements are rare. Here we present evidence from nuclear intergenic DNA sequencing, microsatellite genotyping, and configuration of the mating-type locus to demonstrate two independent origins of persistent diploid genome organization in the Metarhizium majus species complex.
Ryan M, Kepler, Yuan, Chen, James, Kilcrease, Jonathan, Shao, Stephen A, Rehner   +4 more
openaire   +1 more source

Conversion of diploidy to haploidy

Nature, 2000
Yan, H, Papadopoulos, N, Marra, Giancarlo, Perrera, C, Jiricny, J, Boland, C R, Lynch, H T, Chadwick, R B, de la Chapelle, A, Berg, K, Eshleman, J R, Yuan, W, Markowitz, S, Laken, S J, Lengauer, C, Kinzler, K W, Vogelstein, B   +16 more
openaire   +3 more sources

Genetically Controlled Diploidy in a Higher Fungus

Science, 1967
Y, Koltin, J R, Raper
openaire   +2 more sources

Bifactorial Heterothallism and Vegetative Diploidy in Clitocybe Tabescens

Mycologia, 1982
James Anderson
exaly  

Diploidy

2013
openaire   +1 more source

Induced Diploidy in Atrichum flavisetum

The Bryologist, 1961
R. S. Chopra, S. S. Kumar
openaire   +1 more source