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dc.creatorBolaños Villegas, Pablo Albertoes_ES
dc.creatorThangasamy, Saminathanes_ES
dc.creatorJauh, Guang-Yuhes_ES
dc.date.accessioned2015-03-03T16:43:44Zes_ES
dc.date.available2015-03-03T16:43:44Zes_ES
dc.date.issued2011es_ES
dc.identifier.citationhttp://web.a.ebscohost.com/ehost/ebookviewer/ebook/bmxlYmtfXzQ1MDU1OV9fQU41?sid=bde616bb-eff0-476b-9fd6-71e2127ff36c@sessionmgr4001&vid=1&format=EB&lpid=lp_i&rid=0es_ES
dc.identifier.isbn9781613246535es_ES
dc.identifier.isbn9781620816059es_ES
dc.identifier.urihttp://hdl.handle.net/10669/11335es_ES
dc.descriptionartículo -- Universidad de Costa Rica. escuela de Agronomía, 2011. Ese documento es privado debido a limitaciones de derechos de autor.es_ES
dc.description.abstractIn flowering plants the transfer of traits from one generation to the other involves fertilization of female gametophyte with sperm cells delivered by pollen tube, and the subsequent reassortment of traits (alleles) in the developing progeny. In nature DNA recombination and segregation of traits to the progeny prevents the accumulation of deleterious genes and loss of fitness; however for breeding purposes it is advantageous to fix superior trait combinations (genotypes) and by-pass sexual reproduction. The formation of sexual seed without fertilization of the egg is called apomixis and is considered the holy grail of plant breeding because top-performing varieties can be reproduced indefinitely without changes in the genotypes themselves or in their expression patterns. Apomixis is a dominant trait and consists on several processes working in tandem, separately each process is detrimental for plants, however, as a single unit they allow development of embryo and endosperm from unfertilized eggs. The three processes that constitute apomixis are: 1) apomeiosis, or cell division without DNA recombination in pollen and eggs, 2) parthenogenesis, autonomous development of eggs into fully formed embryos, and 3) stable development of the endosperm, the part of the seed, needed for the embryo to grow. Unfortunately full expression and transmission of apomixis is affected by DNA recombination, therefore introgression of the trait from wild relatives into commercial varieties is extremely difficult. In this review we present genes that have been identified to regulate each step of apomixis and discuss strategies to allow transmission of the trait in full using tools from molecular biology.es_ES
dc.description.sponsorshipAcademia Sinica (Taiwan). National Science Council (Taiwan). Universidad de Costa Ricaes_ES
dc.language.isoen_USes_ES
dc.publisherFlowering plants: classification, characteristics and breeding, Chapter: 4, Publisher: Nova Publishers, Editors: J.J. Tellstone, pp.97-117es_ES
dc.subjectMolecular biologyes_ES
dc.subjectMeiosises_ES
dc.subjectChromosomeses_ES
dc.subjectPollinationes_ES
dc.subjectBiotechnologyes_ES
dc.subjectGenética vegetales_ES
dc.subjectBotánicaes_ES
dc.subjectAngiospermses_ES
dc.titleRise of the clones: apomixis in plant breedinges_ES
dc.typeinfo:eu-repo/semantics/bookPartes_ES
dc.typeCapítulo de libroes_ES
dc.identifier.doiDOI: 10.13140/2.1.3255.7762es_ES
dc.description.procedenceUCR::Vicerrectoría de Docencia::Ciencias Agroalimentarias::Facultad de Ciencias Agroalimentarias::Escuela de Agronomíaes_ES


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