Search Constraints
Search Results
-
Journal article
Plastome phylogenomics of sugarcane and relatives confirms the segregation of the genus Tripidium (Poaceae: Andropogoneae)
Sugarcane (Saccharum officinarum) is one of the most important crops in the world and a major source of sugar for human consumption. Despite this immense value, the circumscription of the genus Saccharum is complex, contentious, and largely unresolved. Saccharum is accepted in a broad sense by some authors or split...Welker, Cassiano ; McKain, Michael ; Vorontsova, Maria S. ; Peichoto, Myriam ; Kellogg, Elizabeth
-
Journal article
Pinanga schwanerensis, a new species of pinanga (arecaceae) from Kalimantan, Indonesia
A new species of palm, Pinanga schwanerensis, is described and illustrated here. This is the third species of Pinanga to have been described from Kalimantan since the description of P. salicifolia Bblume and P. albescens Bbecc. A discussion of its morphological characters, distribution, ecology, habitat and conservation status is provided....Randi, A ; Hikmat, A ; Heatuatubunun, C
-
Journal article
Phylogeny of two African genera of Sapotaceae - Englerophytum and Synsepalum
Englerophytum and Synsepalum are two closely related genera of trees and shrubs from the African tropics. Previous molecular studies have shown that these genera collectively form a clade within the subfamily Chrysophylloideae (Sapotaceae). However, little is known about the inter-relationships of the taxa within the Englerophytum-Synsepalum clade. In this study,...Borg, D ; Richardson, J ; Harris, D ; Gautier, L ; Hughes, M …
-
Journal article
Phylogenomics of Orchidaceae based on plastid and mitochondrial genomes
To advance our knowledge of orchid relationships and timing of their relative divergence, we used 76 protein-coding genes from plastomes (ptCDS) and 38 protein-coding genes from mitochondrial genomes (mtCDS) of 74 orchids representing the five subfamilies and 18 tribes of Orchidaceae, to reconstruct the phylogeny and temporal evolution of the...Li, Yun-Xia ; Li, Zhang-Hai ; Schuiteman, Andre ; Chase, Mark ; Li, Jian-Wu …
Mitochondrial genome, Orchidaceae, Plastid genome, Mycoheterotrophic orchids, Vanilloideae, and Cypripedioideae
-
Journal article
Phylogeography and post-glacial dynamics in the clonal-sexual orchid Cypripedium calceolus L
Aim We investigated the phylogeographical history of a clonal-sexual orchid, to test the hypothesis that current patterns of genetic diversity and differentiation retain the traces of climatic fluctuations and of the species reproductive system. Location Europe, Siberia and Russian Far East. Taxon Cypripedium calceolus L. (Orchidaceae). Methods Samples (>900, from...Gargiulo, Roberta ; Pironon, Samuel ; Zheleznaya, Ekaterina ; Sanchez, Michele ; Balázs, Zoltan …
-
Journal article
Phylogeny and divergence time estimation of Chamaecrista ser. Rigidulae (Leguminosae: Caesalpinioideae)
Chamaecrista is a monophyletic genus, but most of its infrageneric categories have been shown to be paraphyletic, including series Rigidulae which currently comprises 30 species, all endemic to Brazil and most occurring in the cerrado vegetation of the central highlands of the country. This molecular phylogenetic study tests the monophyly...de Souza Alessandro, Oliveira ; Lewis, Gwilym ; Telles, Mariana ; da Silva, Marcos
-
Journal article
Phylogenomic analyses reveal an exceptionally high number of evolutionary shifts in a florally diverse clade of African legumes
Detarioideae is well known for its high diversity of floral traits, including flower symmetry, number of organs, and petal size and morphology. This diversity has been characterized and studied at higher taxonomic levels, but limited analyses have been performed among closely related genera with contrasting floral traits due to the...Ojeda, Dario ; Koenen, Erik ; Cervantes, Sandra ; de la Estrella, Manuel ; Banguera-Hinestroza, Eulalia …
-
Journal article
Phylogenetic relationships in Apocynaceae based on nuclear PHYA and plastid trnL-F sequences, with a focus on tribal relationships
To date, most molecular phylogenetic studies of Apocynaceae have been based on plastid DNA regions or nuclear ribosomal DNA. In this study, we used part of the PHYA (phytochrome A) exon, a low-copy nuclear gene, and combined it with the trnL-F region (intron and spacer) to investigate placement of Periplocoideae,...Nazar, Nazia ; Clarkson, James ; Goyder, David ; Kaky, Emad ; Mahmood, Tariq …
-
Journal article
Phylogenetics, classification and typification of extant horsetails (Equisetum, Equisetaceae)
Horsetails (Equisetum, Equisetaceae) are one of the oldest groups of vascular plants with a nearly continuous fossil record dating back to the Carboniferous. Only a few studies have addressed relationships among and within the extant members of this fern genus. We here present the first complete phylogenetic analysis of one...Christenhusz, Maarten ; Bangiolo, Lois ; Chase, Mark ; Fay, Michael ; Husby, Chad …
-
Journal article
Phylogenetic relationships among species of Barleria (Acanthaceae, Lamiales): Molecular data reveal complex patterns of morphological evolution and support a revised classification
Barleria is a genus of ~300 species of herbs and shrubs in Africa and Asia, with highest diversity in tropical East Africa and southern Africa. The genus is part of Barlerieae (Acanthaceae), a lineage that is distinguished from other Acanthaceae by quincuncial corolla aestivation. Unequivocal synapomorphies have yet to be...Darbyshire, Iain ; Fisher, Amanda ; Kiel, Carrie ; McDade, Lucinda