Article ; Online: Phylogenetic relationships within Parianinae (Poaceae: Bambusoideae: Olyreae) with emphasis on Eremitis: Evidence from nuclear and plastid DNA sequences, macromorphology, and pollen ectexine patterns.
Molecular phylogenetics and evolution
2019 Volume 139, Page(s) 106541
Abstract: Eremitis, Pariana, and Parianella are herbaceous bamboos (tribe Olyreae) included in the subtribe Parianinae, which is characterized by the presence of fimbriae at the apex of the leaf sheaths and exclusively spiciform synflorescences. We analyzed 43 ... ...
| Abstract | Eremitis, Pariana, and Parianella are herbaceous bamboos (tribe Olyreae) included in the subtribe Parianinae, which is characterized by the presence of fimbriae at the apex of the leaf sheaths and exclusively spiciform synflorescences. We analyzed 43 samples of herbaceous and woody bamboos in order to infer relationships within the Parianinae, based on combined data from the nuclear ribosomal internal transcribed spacer (ITS) and plastid DNA (rpl32-trnL and trnD-trnT spacers). Bayesian inference, maximum likelihood, and maximum parsimony methods were applied, and macro- and micromorphological aspects were also analyzed, including the ectexine patterns of pollen grains. Parianinae is represented by three well-supported lineages in our analyses: (1) Parianella, endemic to southern Bahia, Brazil; (2) Pariana sensu stricto with a broad distribution in southern Central America and northern South America, especially in the Amazon region; and (3) Eremitis, endemic to the Brazilian Atlantic Forest, from the states of Pernambuco to Rio de Janeiro, including one species previously described as a member of Pariana. Our molecular phylogeny showed that Pariana, as historically circumscribed, is not monophyletic, by recovering Pariana sensu stricto as strongly supported and sister to Eremitis + Pariana multiflora, with Parianella sister to the Pariana-Eremitis clade. Morphological features of their synflorescences and differences in ectexine patterns characterize each lineage. Based on all these characters and the phylogenetic results, Pariana multiflora, endemic to the state of Espírito Santo, Brazil, is transferred to Eremitis. |
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| MeSH term(s) | Bayes Theorem ; Brazil ; Cell Nucleus/genetics ; Central America ; DNA, Plant/chemistry ; Phylogeny ; Plastids/genetics ; Poaceae/anatomy & histology ; Poaceae/classification ; Poaceae/genetics ; Poaceae/ultrastructure ; Pollen/ultrastructure ; Sequence Analysis, DNA ; South America |
| Chemical Substances | DNA, Plant |
| Language | English |
| Publishing date | 2019-06-19 |
| Publishing country | United States |
| Document type | Journal Article ; Research Support, Non-U.S. Gov't |
| ZDB-ID | 33610-5 |
| ISSN | 1095-9513 ; 1055-7903 |
| ISSN (online) | 1095-9513 |
| ISSN | 1055-7903 |
| DOI | 10.1016/j.ympev.2019.106541 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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