2017
DOI: 10.1007/s00606-017-1480-1
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Unusual diversity of apomictic mechanisms in a species of Miconia, Melastomataceae

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Cited by 18 publications
(23 citation statements)
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“…In addition, polyembryonic seeds allow the coexistence of sexual and asexual embryos, so different genotypes and levels of genetic variability can be found in the same seed (Batygina & Vinogradova 2007). On the other hand, the formation of multiple embryos in a single seed can cause embryo morphological anomalies due to resource competition, negatively affecting embryo and seedling survival (Mendes-Rodrigues et al 2012;Caetano et al 2018). In this sense, programmed cell death in polyembryonic seed development has been reported as a mechanism to prevent competition between embryos and ensure the survival of at least one (Filonova et al 2002).…”
Section: Sporophytic Apomixis (Adventitious Embryony)mentioning
confidence: 99%
“…In addition, polyembryonic seeds allow the coexistence of sexual and asexual embryos, so different genotypes and levels of genetic variability can be found in the same seed (Batygina & Vinogradova 2007). On the other hand, the formation of multiple embryos in a single seed can cause embryo morphological anomalies due to resource competition, negatively affecting embryo and seedling survival (Mendes-Rodrigues et al 2012;Caetano et al 2018). In this sense, programmed cell death in polyembryonic seed development has been reported as a mechanism to prevent competition between embryos and ensure the survival of at least one (Filonova et al 2002).…”
Section: Sporophytic Apomixis (Adventitious Embryony)mentioning
confidence: 99%
“…Melastomataceae (Goldenberg & Shepherd 1998;Santos et al 2012;Caetano et al 2013a;Maia et al 2016). Acredita-se que características relacionadas ao endosperma contribuem para a frequência de apomixia autônoma nestas famílias (Hörandl 2010;Caetano et al 2017).…”
Section: Estrutura Da Antera E Desenvolvimento Dos Grãos De Pólenunclassified
“…Melastomataceae (Tobe & Raven 1983;Medeiros & Morretes 1996;Cortez & Carmello-Guerreiro 2008;Caetano et al 2013a;Ribeiro et al 2015;Caetano et al 2017). Embora a curvatura do óvulo e a espessura do tegumento externo nas três espécies aqui estudadas tenham sido semelhantes, tais caracteres são variáveis na família (Tobe & Raven 1983;Medeiros & Morretes 1996;Cortez & Carmello-Guerreiro 2008;Caetano et al 2013a;Ribeiro et al 2015), sendo a espessura do tegumento externo de importância taxonômica (Caetano et al 2018).…”
Section: Estrutura Do óVulo E Desenvolvimento Do Gametófitounclassified
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