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Costa, Liliana M.; Gutierrez-Marcos, José F. (2008)
Publisher: Public Library of Science
Journal: PLoS Biology
Languages: English
Types: Article
Subjects: Primer, QK, Genetics and Genomics, Biology (General), QH301-705.5
Genomic imprinting results in the preferential\ud expression of alleles from either the maternal or\ud paternal chromosomes. This epigenetic process\ud occurs in embryonic and extra-embryonic (placental) tissues\ud of mammals, but only in the extra-embryonic tissue (the\ud endosperm) of flowering plant seeds. It is thought that\ud imprinting arose to ensure that both maternal and paternal\ud genomes contribute to the development of the offspring [1].\ud Indeed, the predominant occurrence of imprinting in extraembryonic\ud structures might indicate a similar reproductive\ud strategy in both taxa to correctly regulate embryo growth\ud and development. Because extra-embryonic lineages do not\ud contribute any genetic information to the offspring, it is\ud likely that epigenetic mechanisms responsible for imprinting\ud could evolve rapidly [2,3], without causing deleterious\ud consequences to the offspring.
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

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