triploidy

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triploidy

[′tri‚plȯid·ē]
(cell and molecular biology)
The occurrence of related forms possessing chromosome numbers three times the haploid number.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Las plantas triploides de Tripsacum en la coleccion del CIMMYT estaban rodeadas de diploides y tetraploides, lo que explica que en su progenie se hayan encontrado una tetraploide y dos pentaploides, en este caso 3n+n y 3n+2n, respectivamente.
DrEvans said: "The triploid fish are infertile so they cannot interbreed with native fish."
Parental origin, hybrid development, chromosome pairing, and fertility of the parents, triploid, and tetraploid [F.sub.1] hybrids were reported by Dewey (1965).
Another hazard associated with deployment of triploid Suminoe oysters is the possibility that nontriploids might be stocked inadvertently because of failure to detect them in a mixed batch of triploid and diploid individuals.
"Golfers were playing on sand or at best rough common bermuda grasses before ARS developed the improved triploid hybrid ones," Hanna says.
27-37[degrees]S), triploid Sydney rock oysters reach market size (50 g whole weight) on average 6 months earlier than the usual 3.5 years for diploids.
Although it has been demonstrated that 3PN zygotes generally have 3 haploid sets of chromosomes, several studies of 3PN embryos have revealed triploid, diploid, or severely abnormal arrays (Figure 2).
These events have come to be referred to as "triploid mortality," eventhough this may be a misnomer, because most farms in this area grow only triploids.
This report is about a pregnancy with a triploid fetus and underscores the potential of first trimester combined screening to detect this devastating chromosomal aberration earlier in pregnancy.
Some nonmolar specimens are digynic triploid conceptions (2 maternal and 1 paternal chromosome complements).