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Citation for Study 15857

About Citation title: "Palynology, cytology, and molecular systematics of Anemone section Begoniifolia (Ranunculaceae)".
About Study name: "Palynology, cytology, and molecular systematics of Anemone section Begoniifolia (Ranunculaceae)".
About This study is part of submission 15857 (Status: Published).

Citation

Zhang Y., Hong Y., Ren C., Tang M., Hoot S.B., & Yang Q. 2014. Palynology, cytology, and molecular systematics of Anemone section Begoniifolia (Ranunculaceae). Plant Systematics and Evolution, .

Authors

  • Zhang Y. (submitter) Phone 86+18675861523
  • Hong Y.
  • Ren C.
  • Tang M.
  • Hoot S.B.
  • Yang Q.

Abstract

The circumscription and phylogenetic relationships of the Anemone section begoniifolia has long been in dispute. Here, we use molecular data and palynological and cytological observations to test the monophyly of the section and evaluate phylogenetic relationships within the section. Three pollen types were observed in the section: A. sumatrana is 3-colpate, A. hokouensis, A. howellii and A. orthocarpa are 6-colpate, and A. begoniifolia and A. xingyiensis are pantoporate. All six species have the chromosome number 2n = 16 and essentially uniform karyotypes (2n = 10m + 4st + 2t). Nuclear ITS and plastid atpB-rbcL DNA sequences were analyzed using maximum parsimony, maximum likelihood, and Bayesian inference methods. Within Anemone s. l., two strongly supported clades corresponding to subgenera Anemonidium (x = 7) and Anemone (x = 8) were recovered. Our results indicate that section Begoniifolia is better treated at subsectional rank and is one of four subsections (Begoniifoliae, Rupicolae, Rivulares, and Vitifoliae) within section Rivularidium of subgenus Anemone. Subsection Begoniifoliae is relatively well supported and includes A. begoniifolia, A. hokouensis, A. howellii, A. orthocarpa, A. sumatrana, and A. xingyiensis. We present a formal reclassification of section Rivularidum, including two new combinations: subsections Begoniifoliae and Rivulares.

Keywords

Anemone ? atpB-rbcL ? Cytology ? ITS ? Molecular phylogeny ? Palynology ?

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  • Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S15857
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