Molecular systematics of Gagea and Lloydia (Liliaceae; Liliales): implications of analyses of nuclear ribosomal and plastid DNA sequences for infrageneric classification.

@article{Zarrei2009MolecularSO,
  title={Molecular systematics of Gagea and Lloydia (Liliaceae; Liliales): implications of analyses of nuclear ribosomal and plastid DNA sequences for infrageneric classification.},
  author={Mehdi Zarrei and Paul Wilkin and Michael F. Fay and Martin J. Ingrouille and Shahin Zarre and Mark W. Chase},
  journal={Annals of botany},
  year={2009},
  volume={104 1},
  pages={
          125-42
        }
}
BACKGROUND AND AIMS Gagea is a Eurasian genus of petaloid monocots, with a few species in North Africa, comprising between 70 and approximately 275 species depending on the author. Lloydia (thought to be the closest relative of Gagea) consists of 12-20 species that have a mostly eastern Asian distribution. Delimitation of these genera and their subdivisions are unresolved questions in Liliaceae taxonomy. The objective of this study is to evaluate generic and infrageneric circumscription of… Expand
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References

SHOWING 1-10 OF 136 REFERENCES
A molecular phylogeny of the genus Gagea (Liliaceae) in Germany inferred from non-coding chloroplast and nuclear DNA sequences
TLDR
Analysis of the ITS region shows that G. pomeranica represents a hybrid of G. pratensis and G. lutea, and two subspecies of Gagea bohemica are characterized by trnL-trnF data and morphological features. Expand
Systematics of Gagea and Lloydia (Liliaceae) and infrageneric classification of Gagea based on molecular and morphological data.
TLDR
The molecular results support the infrageneric classification of the genus Gagea in sections according to Levichev and demonstrate that Pascher's subdivision of this genus into two subgenera can no longer be upheld. Expand
Phylogenetic relationships of Gagea Salisb. (Liliaceae) in Italy, inferred from molecular and morphological data matrices
TLDR
Morphological, molecular and combined data support the basal position of G. trinervia (Anthericoides), and the section Gagea forms a well-defined monophyletic clade. Expand
The its Region of Nuclear Ribosomal DNA: A Valuable Source of Evidence on Angiosperm Phylogeny
The internal transcribed spacer (ITS) region of 18S-26S nuclear ribosomal DNA (nrDNA) has proven to be a useful source of characters for phylogenetic studies in many angiosperm families. The twoExpand
Molecular phylogenetic evidence for the monophyly of Fritillaria and Lilium (Liliaceae; Liliales) and the infrageneric classification of Fritillaria.
TLDR
P phylogenetic analyses of 37 taxa of Fritillaria (Liliaceae), 15 species of Lilium, and several outgroup taxa from Liliaceae s.s. to investigate the generic delimitation of Fritchillaria in relation to Lilium as well as infrageneric relationships within Fritilaria support the new classification of Friticalia proposed by Rix. Expand
Molecular phylogeny of Helleborus (Ranunculaceae), with an emphasis on the East Asian-Mediterranean disjunction
Phylogenetic relationships within the genus Helleborus (Ranunculaceae) were evaluated with analyses of plastid trnL-F and partial matK and nuclear ITS DNA sequences for all 16 currently recognisedExpand
Molecular systematics of Iridaceae: evidence from four plastid DNA regions.
TLDR
In the combined tree, all subfamilies were resolved as monophyletic, except Nivenioidae that formed a grade in which Ixioideae were embedded, and this subfamily also lacks clear morphological synapomorphies and is highly heterogeneous, so it is difficult to develop a strong case on nonmolecular grounds for their monophyly. Expand
Subtribal and generic relationships of Maxillarieae (Orchidaceae) with emphasis on Stanhopeinae: combined molecular evidence.
The monophyly of and phylogenetic relationships within the orchid tribe Maxillarieae Pfitzer were evaluated using parsimony analyses of combined nuclear ribosomal and plastid DNA sequence data of ITSExpand
Chloroplast DNA phylogeny, reticulate evolution, and biogeography of Paeonia (Paeoniaceae).
TLDR
A refined hypothesis of species phylogeny of section Paeonia was proposed by considering the discordance between the nuclear and cpDNA phylogenies to be results of hybrid speciation followed by inheritance of cpDNA of one parent and fixation of ITS sequences of another parent. Expand
Paraphyly of Tarasa (Malvaceae) and Diverse Origins of the Polyploid Species
TLDR
It is suggested that the unusual morphological features of the tetraploids are the result of convergent evolution and not shared ancestry, and neither the nuclear nor the chloroplast phylogeny supports monophyly of Tarasa as currently circumscribed. Expand
...
1
2
3
4
5
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