haploid

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haploid

Biology
1. (esp of gametes) having a single set of unpaired chromosomes
2. a haploid cell or organism
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

haploid

[′ha‚plȯid]
(genetics)
Having half of the diploid or full complement of chromosomes, that is, one complete set, as in mature gametes.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Assessment of attained doubled haploid lines under greenhouse condition can help us to find appropriate lines for being applied in breeding programs as valuable plant materials.
In maize, occurrence of haploid plants in nature was described by Chase (1949, 1952) and found that spontaneous induction rate of haploids was very low (1 out of 1000 seeds).
Microspore culture and the performance of microspore derived doubled haploid in Brassica juncea L.
About 100 eggs activated with irradiated brown trout and rainbow trout were then placed into separate baskets of the egg incubator and form haploid gynogenetic groups, [H.sub.BTxBT] and [H.sub.BTxRT], respectively.
However, by culturing pollen grains in the laboratory, haploid plants that contain only one copy of each chromosome can be produced.
A haplodiploidizacao androgenetica caracteriza-se pelo cultivo destes gametas, os graos de polen, em um meio de cultura especifico que estimula o desvio da rota metabolica (HUNTER, 1985), levandoos a se desenvolverem em plantas haploides. Estas plantas, apos a duplicacao do genoma, seja de forma espontanea seja induzida, resultam no desenvolvimento de plantas duplo-haploides.
In the Proceedings of the 1st International Conference on "Haploids in Higher Plants," in 1974, the basis for a broad, inclusive use of the term "androgenesis" were established (de Fossard, 1974b).
Produced haploid lines from microspore and anther culture provide high potential for genetic breeding with development of genetic variation through production of completely homozygous lines in short time [3,4,10,9,14,17].
The production of haploid wheat plants from wheat x maize crosses.
In the G-n group, diploids were undetectable, 18.8% subaneuplolid, 56.3% haploids, and 25.0% aneuploid with low chromosome number (17-21) were observed, which indicated that the UV treatment of sperm, used in this experiment, effectively destroyed the integrity of the sperm genome.
Microscopic and cytological evidence suggest that many dinoflagellates possess a haploid nuclear phase.