triploidy


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Related to triploidy: triploidy syndrome

triploidy

[′tri‚plȯid·ē]
(cell and molecular biology)
The occurrence of related forms possessing chromosome numbers three times the haploid number.
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Triploidy was induced by inhibiting meiosis II (blocking the extrusion of polar body 2) using the hypotonic shock method (Wang et al.
Triploidy formation after intracytoplasmic sperm injection may be a surrogate marker for implantation.
Induction of triploidy in spotted sand bass (Paralabrax maculatofasciatus Steindachner, 1868) by cold shock.
However, the majority of these triploid cases abort during the first trimester or even later as spontaneous abortions, so that ultimately it leads to the rarity of the triploidy in cases that underwent amniocentesis, approximately 1:3300 (9).
Molecular genetic analysis of the type provided by PCR-based DNA (STR) genotyping offers greater diagnostic discriminatory capability than other genetic techniques in that CHMs, PHMs, and nonmolar specimens can be distinguished from one another by specifically discerning the purely androgenetic nature of CHMs from the diandric triploidy of PHMs, and both of these from the biparental allelic balance of nonmolar specimens.
A quantitative fluorescent polymerase chain reaction (QF-PCR) (Elucigene QST*Rplusv2, United Kingdom) for aneuploidy demonstrated likely triploidy, which was confirmed by a karyotype demonstrating 69XXY in 11 out of 11 counted cells.
The new technique will be added to the company's EmbryVu testing service, making it the first NGS-based PGS platform that can identify key chromosomal abnormalities including haploidy, triploidy, and some forms of tetraploidy and UPiD.
Foetal infections such as cytomegalovirus, toxoplasmosis and chromosomal anomalies such as triploidy and trisomy 13 and 18 also result in IUGR.
Triploidy (4, 5, 13, 15, 17, 18) a chromosome 4 deletion, and multiple anomalies were reported in the abdominal cases (n=5; 83%).
The analysis of chromosomal aberrations was classified as numeric (autosomal trisomy -21, 18, 13, 17, 7-, monosomy, triploidy, and sex CA), structural (inversion, deletion, de novo marker, Robertsonian translocation, reciprocal translocation, chromosomal variant), and single gene disorders (fragile X syndrome, maple syrup disease, spinal muscular atrophy, congenital adrenal hyperplasia, thalassemia).
[3.] Cherfas NB, Kozinsky O, Rothbard S, Hulata G (1990) Induced Diploid Gynogenesis and Triploidy in Ornamental (Koi) Carp, Cyprinus carpio L.