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polyploidy
(redirected from Genome duplication)

    Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia 0.01 sec.
polyploidy /poly·ploi·dy/ (-ploi″de) possession of more than two sets of homologous chromosomes.
polyploidy
[pol′iploi′dē]
the state or condition of having more than two complete sets of chromosomes.
polyploidy [pol´e-ploi″de]
the state of having more than two sets of homologous chromosomes.
polyploidy
the state of having more than two sets of homologous chromosomes; that is a multiple of the normal diploid number. Results from replication within a nucleus without nuclear division.
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My analyses demonstrate that a single genome duplication occurred near the base of the polypod ferns, a lineage that comprises >80% of extant fern diversity.
Evolutionary Genomic Analyses of Ferns Reveal that High Chromosome ... by Barker, Michael S. / American Fern Journal
It has been suggested that a whole genome duplication event has occurred during the evolution of Bivalvia; clams and scallops with 19 chromosomes represent the tetraploid lineage; and oysters with 10 chromosomes represent the diploid lineage (Wang & Guo 2004).
Chromosomal mapping of the major ribosomal RNA genes in the dwarf ... by Yongping, Wang; Ximing, Guo / Journal of Shellfish Research
Another more recent genome duplication may have led to the extraordinary diversity of bony fishes (about 30,000 species), which account for about half of vertebrate species.
Down to the Sea on (Gene) chips: the genomics revolution is ... by Hahn, Mark E. / Oceanus
 
 
 
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