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1
Aquaculture and Fisheries Biotechnology and Genetics
Tetraploid induction Allowing karyokinesis while blocking cytokinesis produces
tetraploids. Similar techniques – temperature shocks and hydrostatic pressure –
are used to induce both triploidy and tetraploidy (Bidwell et al., 1985; Chourrout
et ...
2
The Cell Cycle: Principles of Control
Cancer cells often become aneuploid through a tetraploid intermediate Human
cancer cells usually have abnormal numbers of chromosomes, a condition called
aneuploidy. In the later stages of cancer, chromosome number can increase ...
3
Triticale: Today and Tomorrow
Henrique Guedes-Pinto, Norman Darvey, Valdemar P. Carnide. behaviour and
seed shape were also present in the amphiploids. Tetraploid triticale in field trials
, at maturity, resembles a cultivated cereal, with upright growth habit, more similar
...
Henrique Guedes-Pinto, Norman Darvey, Valdemar P. Carnide, 1996
4
Marijuana Botany: An Advanced Study: The Propagation and ...
Warmke and Davidson (1943) discovered that the sex ratio for diploid (2n)
crosses very nearly approaches 1-to-l but the sex ratio for tetraploid (4n) crosses
is approximately 7.5 pistillate and pistillate-hermaphrodite plants to each
staminate ...
Robert Connell Clarke, 1981
5
Mammalian and Avian Transgenesis - New Approaches
Production of these embryos, which is often termed tetraploid- embryo
complementation, involves (1) the production of tetraploid embryos by
electrofusion at the two-cell stage, (2) injection of tetraploid blastocysts with ES
cells, and finally (3), ...
Shirley Pease, Carlos Lois, 2007
6
An Illustrated Summary of Genetic Traits in
Tetraploid and ...
Donald Kay Barnes, C. H. Hanson. the cotyledons became normal green
throughout. Lutescent cotyledon appeared to be controlled by two
complementary genes Lei and Lc2. Plants with the genotypes Lc\ — Lc2 — had
normal green ...
Donald Kay Barnes, C. H. Hanson, 1967
7
Tetraploid Tunisian Wheat Germplasm as a New Source of ...
Tetraploid Tunisian Wheat Germplasm as a New Source of Fusarium Head Blight
Resistance. Major Professor: Dr. Elias M. Elias. Durum wheat (Triticum turgidum
L. var durum) is a valuable crop used primarily for pasta production. In 2007 ...
8
Genetic Resources, Chromosome Engineering, and Crop ...
4.6.2 Tetraploid Bahiagrass 4.6.2.1 Tetraploid Breeding 4.6.2.1.1 Ecotype
Selection More than 80 tetraploid ecotypes collected in Brazil, Uruguay, and
Northern Argentina have been introduced into the United States during the last
60 years ...
9
Comparative Animal Biochemistry
Examples of polyploid (mostly tetraploid) vertebrates [33, 98, 146, 241, 304, 308]
Agnatha Chondrichthyes Catastomidae Cyprinidae Salmonidae Cobitidae
Amphibia: A mini Hylidae Leptodactylidae Xenopidae Pipidae Ranidae
Bufonidae ...
Methods 1 and 2 were only partly successful insofar as the initial crossing gave
some seed but, despite the use of several approaches, could not give rise to
tetraploid triticales according to the plan. For instance, T. monococcum x diploid
rye ...
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HudsonAlpha investigator, research partners receive $2M to …
“The reference genome sequence generated as a result of this work will form the basis for accelerated breeding for important agronomic traits in tetraploid cotton ... «WAFF, 七月 15»
Developed from wildflowers, the Gloriosa daisy is a garden stalwart
Of these, most are unchanged, but a tiny percentage undergo dramatic alteration, changing from diploid (having two sets of chromosomes) to tetraploid (having ... «Shore News Today, 七月 15»
Peffley: Learn how to breed seedless watermelons
Making triploid watermelons is done by producing tetraploid watermelons (“tetra” means four) having four sets or 44 chromosomes and crossing it with a diploid ... «LubbockOnline.com, 七月 15»
Effects of polyploidy on secondary chemistry, physiology, and …
We have determined that some of the plant cytotypes that we reported in this paper were incorrect. In light of reports that only the tetraploid cytotype of Solidago ... «Am J Botany, 四月 15»
Turf grass seed
Featuring Turfgrass Seed listing top performers, R25 Creeping Ryegrass Tetraploid (CRT) is a 100 per cent perennial ryegrass blend launched by Rigby Taylor. «Horticulture Week, 三月 15»
New release takes annual ryegrass to a new level
March 5: A new tetraploid annual ryegrass proven to yield 1 tonne dry matter/ha more than old common varieties will help farmers enhance the productivity of ... «Scoop.co.nz, 三月 15»
Why organic seedless watermelons could be considered GMOs–Or …
This doubling leads to a plant with four sets of chromsones, called a tetraploid plant. The tetraploid is then pollinated with the original diploid melon, and out ... «Genetic Literacy Project, 一月 15»
Tasty Mutants: The Invention the Modern Oyster
Einkorn wheat, one of the oldest varieties, is a normal, diploid plant, while durum, or macaroni wheat, is tetraploid, and common wheat, or bread wheat, ... «Yahoo News, 九月 14»
Researchers identify a mechanism that stops progression of …
Normally, p53 dependent pathways stop these tetraploid cells from proliferating. This response is critical because those tetraploid cells that escape detection ... «EurekAlert, 八月 14»
Complex Bread Wheat Genome Cracked
In wheat, this happened once several hundred thousand years ago, when two grass species, Triticum urartu and Aegilops speltoides, produced the tetraploid ... «National Geographic, 七月 14»
