2004
DOI: 10.1590/s0100-204x2004000600006
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Polyembryony and identification of Volkamerian lemon zygotic and nucellar seedlings using RAPD

Abstract: -The objectives of this work were to evaluate the frequency of polyembryony, and to identify zygotic and nucellar seedlings of Citrus volkameriana using RAPD. Twenty-five polyembryonic and eight monoembryonic seeds were cultivated in vitro for six months. DNA from seedlings was extracted and used in combination with five RAPD primers to identify zygotic or nucellar origin of the seedlings. Environmental conditions of the year affected significantly (P≤0.05) the morphological characteristics of fruits and the n… Show more

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Cited by 36 publications
(38 citation statements)
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“…The random amplified polymorphic DNA (RAPD) are molecular markers characterized by their abundance in the genome; they are highly polymorphic and simple to use, although, to guarantee their reproducibilty, amplification process should be optimized (Valadez Moctezuma & Kahl, 2000). This makes it possible to use RAPD to differentiate zygotic from nucellar seedlings in early stages, as reported by Cordeiro et al (2006) for mango, and Andrade-Rodríguez et al (2004, 2005 and Rao et al (2008) for citrus.…”
Section: Introductionmentioning
confidence: 81%
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“…The random amplified polymorphic DNA (RAPD) are molecular markers characterized by their abundance in the genome; they are highly polymorphic and simple to use, although, to guarantee their reproducibilty, amplification process should be optimized (Valadez Moctezuma & Kahl, 2000). This makes it possible to use RAPD to differentiate zygotic from nucellar seedlings in early stages, as reported by Cordeiro et al (2006) for mango, and Andrade-Rodríguez et al (2004, 2005 and Rao et al (2008) for citrus.…”
Section: Introductionmentioning
confidence: 81%
“…The endocarp and seed coat (testa with tegmen wrapping all embryos) were removed from each seed, and the number of embryos per seed was determined. We calculated the percentage of seeds having one to seven embryos, the percentage of polyembryony, and the number of embryos per seed (Andrade-Rodríguez et al, 2005).…”
Section: Methodsmentioning
confidence: 99%
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“…As diversas técnicas geradas para a identificação do embrião sexual, como o uso de marcadores isoenzimáticos (Medeiros et al, 2000) e RAPD (Andrade-Rodríguez et al, 2005), entretanto, são muitas vezes inviáveis sob o ponto de vista econômico. Assim sendo, a eliminação ou redução da manifestação da poliembrionia torna-se importante, podendo ser viabilizada pelo cultivo in vitro dos primeiros embriões que se formam em sementes poliembriônicas, com base na pressuposição de que estes possuem grande possibilidade de serem zigóticos, conforme sugerido por Vásquez Araújo (1991).…”
Section: Introductionunclassified
“…Em citros, marcadores RAPD (Random Amplified Polymorphic DNA) têm sido utilizados em estudos de diversidade genética (Machado et al, 1995;Bastianel et al, 1998;Nicolosi et al, 2000;Oliveira et al, 2002a;Andrade et al, 2004). Marcadores AFLP (Amplified Fragment Lenght Polymorphism), por sua vez, são considerados mais eficientes que RFLP (Restriction Fragment Lenght Polymorphism), RAPD e SSR (Single Sequence Repeat), pela sua alta reprodutibilidade e elevada taxa multiplex, ou seja, número de marcadores simultaneamente analisados em um mesmo gel, e vêm sendo utilizados para análise de diversidade genética em muitas espécies vegetais (Pejic et al, 1998).…”
Section: Introductionunclassified