Results 11 to 20 of about 2,556 (190)

Understanding evolution in Poales: Insights from Eriocaulaceae plastome.

open access: yesPLoS ONE, 2019
In this study, we report the plastome of Eriocaulon decemflorum (Eriocaulaceae) and make an effort to understand the genome evolution, structural rearrangements and gene content of the order Poales by comparing it with other available plastomes. The size
Ashwini M Darshetkar   +4 more
doaj   +5 more sources

The megagametophyte in Anarthria (Anarthriaceae, Poales) and its implications for the phylogeny of the Poales [PDF]

open access: yesAmerican Journal of Botany, 1993
The development and structure of the megagametophyte of Anarthria (Anarthriaceae), Aphclia, and Centrolepis (Centrolepidaceae) are described. Anarthriaceae has tenuinucellate ovules and the Polygonum type of megagametophyte development, both characters typical of the Poales.
H. P. Linder, P. J. Rudall
core   +8 more sources

A revised evolutionary history of Poales: origins and diversification [PDF]

open access: yesBotanical Journal of the Linnean Society, 2013
Poales represents more than one-third of all monocotyledons (c. 20 000 species in 16 families) and constitutes a microcosm of the angiosperms. The extreme variation in species richness among the families of Poales is still not understood: Poaceae includes ∼10 000 species, whereas six families have fewer than ten species.
Bouchenak-Khelladi Yanis   +2 more
core   +5 more sources

Nuclear genes, matK and the phylogeny of the Poales [PDF]

open access: yesTAXON, 2018
AbstractPhylogenetic relationships within the monocot order Poales have been well studied, but several unrelated questions remain. These include the relationships among the basal families in the order, family delimitations within the restiid clade, and the search for nuclear single­copy gene loci to test the relationships based on chloroplast loci.
Hochbach, Anne   +2 more
openaire   +4 more sources

Up on the table mountains in Brazil: new Bromeliaceae and Eriocaulaceae (Poales) from the Pantepui in the Guayana Shield [PDF]

open access: yesPlant Ecology and Evolution, 2018
Background and aims – As “islands in the sky” of northern South America, the isolated ecosystems of the Pantepui province include a distinct flora with high levels of endemism and which are ancestral areas for many angiosperm lineages. About one fifth of
Rafael Barbosa-Silva   +3 more
doaj   +4 more sources

Flora polínica de espécies herbáceas de Fabales e Poales das restingas da Praia de Massarandupió, Litoral Norte da Bahia

open access: yesPaubrasilia, 2023
O trabalho objetivou descrever a morfologia polínica de espécies herbáceas de Fabales e Poales presentes na praia de Massarandupió. Para isto, grãos de pólen de 12 espécies pertencentes às ordens supracitadas foram acetolisados, mensurados, descritos ...
Neuber Santos Duarte   +3 more
doaj   +3 more sources

Identification of Ergastic Subtances of The Order Poales

open access: yesJurnal Biologi Tropis, 2023
Ergastic objects are one of the non-protoplasmic components besides vacuoles. Ergastic objects in protoplasts can be solid and liquid.The purpose of the study was to determine how the structure and type of ergastic substances in plants of order poales. This research method includes descriptive research that describes the type and structure of ergastic ...
Syasya Salbila   +4 more
openaire   +3 more sources

Overview of the systematics and diversity of Poales in the Neotropics with emphasis on the Brazilian flora

open access: yesRodriguésia
Poales represents a major part of Angiosperm and Monocot diversity. The families encompass ca. 20,000 species which is about 7% of the Angiosperms and 33% of the Monocots.
Marccus Alves   +3 more
doaj   +2 more sources

The First Complete Plastid Genome from Joinvilleaceae (J. ascendens; Poales) Shows Unique and Unpredicted Rearrangements. [PDF]

open access: yesPLoS ONE, 2016
Joinvilleaceae is a family of tropical grass-like monocots that comprises only the genus Joinvillea. Previous studies have placed Joinvilleaceae in close phylogenetic proximity to the well-studied grass family. A full plastome sequence was determined and
William P Wysocki   +3 more
doaj   +2 more sources

A phylogenomic assessment of ancient polyploidy and genome evolution across the Poales [PDF]

open access: yesGenome Biology and Evolution, 2016
Comparisons of flowering plant genomes reveal multiple rounds of ancient polyploidy characterized by large intragenomic syntenic blocks. Three such whole-genome duplication (WGD) events, designated as rho (ρ), sigma (σ), and tau (τ), have been identified in the genomes of cereal grasses.
McKain, Michael R.   +9 more
core   +5 more sources

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