The Origin of Novel Flavonoids in
            <i>Phlox</i>
            Allotetraploids

Levy, Morris; Levin, Donald A.

doi:10.1073/pnas.68.7.1627

Cited by 23 publications

(4 citation statements)

References 23 publications

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“…A similar result was described by Doyle (1983) in Claytonia, while this was in contrast to the finding of Murray and Williams (1973) in Briza, and Levy (1976 and Levy and Levin (1971, 1974, 1975 in Phlox. In most genera, the diploid species are those most clearly defined morphologically and most isolated reproductively.…”

Section: Discussionsupporting

confidence: 61%

Flavonoids chemistry of theadonis amurensiscomplex in eastern Asia

Chang

Jeon

Kim³

et al. 2008

Forest Science and Technology

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Flavonoids were isolated and identified from flowers and/or leaves of the Adonis amurensis complex. This complex has been a persistent source of taxonomic confusion due to the exclusive use of continuous variation in flower morphology for species definition and recognition. Nineteen flavonoids, including C-glycosylflavones, Oglycosylflavones, and flavonol O-glycosides were characterized. The flavonoids isolated from flowers and leaves of the A. amurensis complex were not the same. The phenogram indicated three major clusters; A. multiflora, A. ramosa-A. pseudoamurensis, and A. amurensis. A. amurensis was characterized by a higher flavonoid diversity composed of a variety of C-glycosylflavones, while A. multiflora was generally characterized by a reduced flavonoid profiles. It is probable that evolutionary advancement is reflected in loss of some of C-glycosylflavone and all of O-glycosylflavone synthesis, resulting in A. multiflora within this series. The present study has demonstrated that the flavonoid chemistry may indeed be as variable as the morphological features, and no significant flavonoid differences at the species level were observed. It was suggested that parallel and/or radiate modes of evolution could have taken place within this complex.

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Section: Discussionsupporting

confidence: 61%

Flavonoids chemistry of theadonis amurensiscomplex in eastern Asia

Chang

Jeon

Kim³

et al. 2008

Forest Science and Technology

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“…Hybridity and polyploidy, in general, can lead to the production and accumulation of compounds, including flavonoids, at greater or lower levels than in progenitors (Griesbach and Kamo, 1996; Lavania et al, 2012). In addition, novel compounds synthesized in allopolyploids and not present in either progenitor have been historically well documented, with reconstruction and complementation of biosynthetic pathways of related genomes as a possible mechanism (e.g., Levy and Levin, 1971, 1974; Dhawan and Lavania, 1996). Our results suggest that T2 may exude greater quantities of Nod‐factor‐inducing compounds than D3 does and reduced levels of inhibiting compounds when compared with D4 (A. F. Powell and J. J. Doyle, unpublished manuscript).…”

Section: Discussionmentioning

confidence: 99%

Enhanced rhizobial symbiotic capacity in an allopolyploid species ofGlycine(Leguminosae)

Powell

Doyle

2016

American J of Botany

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The allopolyploid is characterized by transgressive responses to rhizobia for some variables, while also combining certain parental diploid responses such that its capacity for interactions with rhizobia appears to be greater than for either diploid progenitor. This overall enhanced nodulation capacity and the ability to make greater gains from exposure to both rhizobia and additional nitrogen indicate a greater potential of the allopolyploid to benefit from these factors both generally and in a context of colonization.

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“…The complexity of using morphological characters was compounded with the elucidation that not all characters are additive and that many morphological features are under complex genetic control (Gottlieb 1972;reviewed in Meyerowitz 1997). Flavonoid and allozyme studies offered some help in terms of deciphering patterns of hybridization, but not always with complete success (Smith & Levin 1963;Levin 1967;Levy & Levin 1971;Levy 1976;King 1979; some case studies in Rieseberg & Wendel 1993). Recent developments in systematics include the use of molecular characters such as nuclear rDNA and chloroplast DNA (cpDNA) restriction-site variation, nucleotide sequencing, and PCR-generated markers (e.g.…”

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confidence: 99%

Assessing hybridization in natural populations of Penstemon (Scrophulariaceae) using hypervariable intersimple sequence repeat (ISSR) bands

Xiang²,

1998

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Inferences regarding hybridization rely on genetic markers to differentiate parental taxa from one another. Intersimple sequence repeat (ISSR) markers are based on single-primer PCR reactions where the primer sequence is derived from di- and trinucleotide repeats. These markers have successfully been used to assay genetic variability among cultivated plants, but have not yet been tested in natural populations. We used genetic markers generated from eight ISSR primers to examine patterns of hybridization and purported examples of hybrid speciation in Penstemon (Scrophulariaceae) in a hybrid complex involving P. centranthifolius, P. grinnellii, P. spectabilis and P. clevelandii. This hybrid complex has previously been studied using three molecular data sets (allozymes, and restriction-site variation of nuclear rDNA and chloroplast DNA). These studies revealed patterns of introgression involving P. centranthifolius, but were unsuccessful in determining whether gene flow occurs among the other species, and support for hypotheses of diploid hybrid speciation was also lacking. In this study, we were able to fingerprint each DNA accession sampled with one to three ISSR primers and most accessions could be identified with a single primer. We found population- and species-specific markers for each taxon surveyed. Our results: (i) do not support the hybrid origin of P. spectabilis; (ii) do support the hypothesis that P. clevelandii is a diploid hybrid species derived from P. centranthifolius and P. spectabilis; and (iii) demonstrate that pollen-mediated gene flow via hummingbird vectors is prevalent in the hybrid complex.

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The Origin of Novel Flavonoids in Phlox Allotetraploids

Cited by 23 publications

References 23 publications

Flavonoids chemistry of theadonis amurensiscomplex in eastern Asia

Flavonoids chemistry of theadonis amurensiscomplex in eastern Asia

Enhanced rhizobial symbiotic capacity in an allopolyploid species ofGlycine(Leguminosae)

Assessing hybridization in natural populations of Penstemon (Scrophulariaceae) using hypervariable intersimple sequence repeat (ISSR) bands

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