tetraploid

(redirected from tetraploids)
Also found in: Dictionary.
Related to tetraploids: polyploid, euploid, diandry, Allotetraploid

tetraploid

 [tet´rah-ploid]
1. characterized by tetraploidy.
2. an individual or cell having four sets of chromosomes.

pol·y·ploi·dy

(pol'ē-ploy'dē),
The state of a cell nucleus containing three or more haploid sets. Cells containing three, four, five, or six multiples are referred to, respectively, as triploid, tetraploid, pentaploid, or hexaploid.
[poly- + G. ploidēs, in form]

tetraploid

(tĕt′rə-ploid′)
adj.
Having four times the haploid number of chromosomes in the cell nucleus: a tetraploid species.
n.
A tetraploid individual.

tet′ra·ploi′dy n.

tetraploid

Referring to a polyploid organism with four (4X) sets of chromosomes derived from two different parental species, resulting in an allopolyploid organism.

pol·y·ploi·dy

(pol'ē-ploy'dē)
The state of a cell nucleus containing three or more haploid sets. Cells containing three, four, five, or six multiples are referred to, respectively, as triploid, tetraploid, pentaploid, and hexaploid.
[poly- + G. ploidēs, in form]

tetraploid

  1. having four times the HAPLOID (1) number of chromosomes in the nucleus.
  2. an individual with four sets of chromosomes per cell. see TRIPLOID.
References in periodicals archive ?
These studies further suggested that interspecific tetraploid somatic hybrid plants exhibit incompatibility or low fertility.
Differences in diameters of spermatogenic (spermatogonium, spermatocyte, spermatid, and spermatozoa) and oogenic stages (oogonia, previtellogenic oocyte, vitellogenic oocyte, and postvitellogenic oocyte) between diploids and tetraploids were analyzed by means of analysis of variance (Statistica v.8).
Galax is monotypic within its genus (Palser, 1963; Brummitt, 1972; Ronblom and Anderberg, 2002) and represents an autotetraploid series, with diploids (2x = 12), triploids (3x= 18) and tetraploids (4x = 24) occurring in uniform- as well as mixed-cytotype populations (Baldwin, 1941; Nesom, 1983; Burton and Husband, 1999).
Plants identified as tetraploids by DNA jah quantification and even those confirmed later as mixoploid, through chromosome counting, were isolated and showed viable seed production.
can be identified by simply crossing them as females to tetraploids
Crosses of Diploid x tetraploid cultivars, triploid x tetraploid cultivars and tetraploid x tetraploid cultivars can result in full compatibility, incompatibility, or different degrees of semicompatibility, because diploid pollen can have more than one S-allele.
A complementary method for production of tetraploid Crassostrea gigas using crosses between diploids and tetraploids with cytochalasin b treatments.
The investigators also are developing tetraploid orange-flesh potato varieties.
PolyCat uses reads from diploids to generate preindexed homoeoSNPs that will be then used to assign reads from tetraploids to a subgenome.
So we thought we would be able to cross them with tetraploid potatoes to produce potatoes that have 13 times the carotenoid levels and look like grocery store potatoes.
F., Farahanei, F., and Noormohammad, Z., 2007, "Study of genetic polymorphism in some tetraploid cotton cultivars by using RAPD analysis", Pak.