2008
DOI: 10.1139/g08-068
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Natural polyploidy inVanilla planifolia(Orchidaceae)

Abstract: Vanilla planifolia accessions cultivated in Reunion Island display important phenotypic variation, but little genetic diversity is demonstrated by AFLP and SSR markers. This study, based on analyses of flow cytometry data, Feulgen microdensitometry data, chromosome counts, and stomatal length measurements, was performed to determine whether polyploidy could be responsible for some of the intraspecific phenotypic variation observed. Vanilla planifolia exhibited an important variation in somatic chromosome numbe… Show more

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Cited by 59 publications
(72 citation statements)
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“…(3) What is the AT/GC composition of apostasioid genomes? (4) Does somatic tissue of Apostasioideae undergo conventional endopolyploidization or progressively partial endoreplication, as previously observed in some other orchids (Bory et al ., ; Trávníček et al ., )?…”
Section: Introductionmentioning
confidence: 99%
“…(3) What is the AT/GC composition of apostasioid genomes? (4) Does somatic tissue of Apostasioideae undergo conventional endopolyploidization or progressively partial endoreplication, as previously observed in some other orchids (Bory et al ., ; Trávníček et al ., )?…”
Section: Introductionmentioning
confidence: 99%
“…Palustria not found in Poland) to see whether this feature can be helpful in determining ploidy level. The size of stomatal guard cells, a nucleotypic character influenced by nuclear DNA amount (Bory et al, 2008;Hodgson et al, 2010), is correlated with ploidy level in a range of natural and commercial cytotypes/varieties of different plant species (Speckman et al, 1965;Przywara et al, 1988;Cohen and Yao, 1996;Mishra, 1997;Joachimiak and Grabowska-Joachimiak, 2000). Chromosome counting is time-consuming and not suited for routine screening of ploidy level in Taraxacum microspecies.…”
mentioning
confidence: 99%
“…Vanilla planifolia, an epiphytic orchid, is the major natural source of vanilla flavor. The diploid (2n = 2x = 32) V. planifolia has a relatively large genome with a mean diploid nuclear DNA content of 5.03 pg/2C (Bory et al 2008). The transcriptome of V. planifolia has been published (Rao et al 2014), and the raw data were downloaded from the NCBI SRA database and then processed by our bioinformatics pipeline.…”
Section: Resultsmentioning
confidence: 99%