• For the combination of polyploidy and heterosis, we have generated triploid hybrids (THs) of energy willow by crossing autotetraploid willow plants with leading cultivars (Tordis and Inger). (bvsalud.org)
  • Polyploidy is a condition in which the cells of an organism have more than one pair of (homologous) chromosomes. (wikipedia.org)
  • Polyploidy may occur due to abnormal cell division, either during mitosis, or more commonly from the failure of chromosomes to separate during meiosis or from the fertilization of an egg by more than one sperm. (wikipedia.org)
  • Triploidy is a condition in which an organism contains Three sets (3n) of chromosomes in the nucleus of the body cell. (biologyideas.com)
  • Polyploidy is a condition in which an organism contains more than usual two sets (2n) of chromosomes . (biologyideas.com)
  • This would cause problems, because if most animals' sex was determined by the ratios of chromosomes (as in Drosophila), triploidy would lead to sterility. (stackexchange.com)
  • Triploidy originates from the union of a haploid (n) and diploid (2n) gametes of different strains of the same species. (biologyideas.com)
  • Triploidy is occasionally seen in natural populations of flowering plants that contain diploid (2n) and tetraploid (4n) plants. (tipseri.com)
  • Speciation via polyploidy: A diploid cell undergoes failed meiosis, producing diploid gametes, which self-fertilize to produce a tetraploid zygote. (tipseri.com)
  • I understand that triploidy is harmful due to stronger influence of maternal or paternal epigenetic traits that cause abnormal development of placenta, but why there is no tetraploid mammals? (stackexchange.com)
  • Polyploidy is an important mechanism in the evolution of plants. (tripod.com)
  • Polyploidy is especially common in plants. (wikipedia.org)
  • However in plants triploidy has economic value and it can be propagated by asexual methods like grafting, budding, etc. (biologyideas.com)
  • In 1925 HJ Muller addressed this question in a famous paper, "Why polyploidy is rarer in animals than in plants" (Muller, 1925). (stackexchange.com)
  • Muller briefly described the phenomenon that polyploidy was frequently observed in plants, but rarely in animals. (stackexchange.com)
  • Polyploidy occurs in plants and not in higher animals. (researchtweet.com)
  • polyploidy in crop plants. (org.ua)
  • [7] Kunakh VA. Polyploidy in cell culture in vitro and its possible causes. (org.ua)
  • Polyploidy is rare in animals and it results in the sterility of an individual. (biologyideas.com)
  • We used the parasitoid wasp Nasonia vitripennis, a rare insect system with heritable polyploidy, to begin addressing this knowledge gap. (bvsalud.org)
  • Polyploidy is a condition in which the cells of an organism have more than one pair of (homologous) chromosomes. (wikipedia.org)
  • Polyploidy may occur due to abnormal cell division, either during mitosis, or more commonly from the failure of chromosomes to separate during meiosis or from the fertilization of an egg by more than one sperm. (wikipedia.org)
  • Polyploidy refers to the presence of an extra set of chromosomes. (medscape.com)
  • Triploidy, for example, usually occurs when 2 spermatozoa fertilize an oocyte, resulting in a zygote that contains 3 sets of chromosomes instead of 2 (see Fig. 3). (medscape.com)
  • or =58 chromosomes is reported in 0.5-3% of hematological malignancies, but reports of near-triploidy (58-80 chromosomes) and near-tetraploidy (81-103 chromosomes), are few. (nih.gov)
  • Polyploidy with three sets of chromosomes. (nih.gov)
  • SHORTER ARTICLES AND DISCUSSION POLYPLOIDY IN ZEA MAYS L. Durina the course of our investigations on the chromosome numbers in Zea Mays a triploid plant has appeared in a culture obtained for cytological and genetical studies from Dr. A. C, Fraser, Cornell University. (nih.gov)
  • This condition is called triploid syndrome, also called triploidy and is known as a diandric fertilization. (lacteoscienelac.com)
  • Chromosomal abnormalities may involve changes in number (ie, polyploidy and aneuploidy) or changes in structure (ie, rearrangements such as translocations, rings, and inversions). (medquizzes.net)
  • Nothing is known concerning the manner in which triploidy arose in the culture referred to above, but in other cultures the following suggestive phenomena have been observed. (nih.gov)
  • The problem Simmonds was alluding to was their application to crops, that like bananas, potatoes and sugarcane have complex genetic histories involving hybridization between species and polyploidy (see D omestication of bananas ). (promusa.org)
  • 2021) Genes derived from ancient polyploidy have higher genetic diversity and are associated with domestication in Brassica rapa. (conantlab.org)