Results 61 to 70 of about 712 (175)

Cyclotide discovery in Gentianales revisited—identification and characterization of cyclic cystine‐knot peptides and their phylogenetic distribution in Rubiaceae plants

open access: yesPeptide Science, Volume 100, Issue 5, Page 438-452, September 2013., 2013
ABSTRACT Cyclotides are a unique class of ribosomally synthesized cysteine‐rich miniproteins characterized by a head‐to‐tail cyclized backbone and three conserved disulfide‐bonds in a knotted arrangement. Originally they were discovered in the coffee‐family plant Oldenlandia affinis (Rubiaceae) and have since been identified in several species of the ...
Johannes Koehbach   +12 more
wiley   +1 more source

Floral epidermal structure and flower orientation:Getting to grips with awkward flowers [PDF]

open access: yes, 2011
The petal epidermis has been found to be important in mediating flower-pollinator interactions. Structures produced on the petal surface, in particular cone-shaped papillate (or conical) cells, have been shown to enhance bumblebee preference for flowers.
Glover, BJ, Rands, SA, Whitney, HM
core   +3 more sources

Large distribution and high sequence identity of a Copia‑type retrotransposon in angiosperm families [PDF]

open access: yes, 2015
International audienceRetrotransposons are the main component of plant genomes. Recent studies have revealed the complexity of their evolutionary dynamics. Here, we have identified Copia25 in Coffea canephora, a new plant retrotransposon belonging to the
Aparecida Carareto, Claudia Marcia   +8 more
core   +3 more sources

Borreria apodiensis (Rubiaceae: Spermacoceae), a new species from Ceará and Rio Grande do Norte, Brazil

open access: yesActa Botânica Brasílica, 2016
A new species of Borreria (Rubiaceae) from Chapada do Apodi in northeastern Brazil is described and illustrated. A distribution map, illustrations, a conservation assessment, a key to morphologically similar taxa and images of the seeds and pollen grains
Elnatan Bezerra de Souza   +4 more
doaj   +1 more source

Kupeantha (Coffeeae, Rubiaceae), a new genus from Cameroon and Equatorial Guinea [PDF]

open access: yes, 2018
Two new coffee relatives (tribe Coffeeae, Rubiaceae), discovered during botanical expeditions to Cameroon, are examined for generic placement, and the placement of three previously known species (Argocoffeopsis fosimondi, A. spathulata and Calycosiphonia
Alvarez-Aguirre, Maria G   +5 more
core   +3 more sources

Biphyly of the genus Wendlandia and establishment of a new tribe Clavistigmateae and a new genus Clavistigma of Rubiaceae from Asia

open access: yesBiological Diversity, Volume 1, Issue 2, Page 58-74, June 2024.
Evidence of molecular and morphological data recovered the biphyly of Wendlandia and supports the establishment of a new genus, Clavistigma, and a new tribe, Clavistigmateae to accommodate the morphologically unique and phylogenetically isolated Wendlandia pendula.
Tieyao Tu   +14 more
wiley   +1 more source

Comparative wood anatomy of species of Psychotria L. (Rubiaceae) in Atlantic Rainforest remnants of Rio de Janeiro State, Brazil

open access: yesActa Botânica Brasílica, 2015
Psychotria is the largest Rubiaceae genus and one of the most abundant in the Atlantic Rainforest of Rio de Janeiro State. The present work aims to characterize and compare the wood of nine of these species.
Jonas B. C. Marques   +4 more
doaj   +1 more source

Reproductive and Seed Germination Characteristics of Woody Borreria (Diodia Ocimifolia) in a Plantation Ecosystem [PDF]

open access: yes, 1997
Woody borreria belongs to the subfamily Rubioidene in the family Rubiacene. It is a brush weed 1 to 1.5 m high and reproduces through seeds. A survey confirmed the presence of woody borreria in every state of Malaysia except Perlis, Kelantan and ...
Lim, Fang Woei
core  

Phylogeny and classification of the coffee family (Rubiaceae, Gentianales): Overview and outlook

open access: yesTAXON, Volume 73, Issue 3, Page 673-717, June 2024.
Abstract The use of molecular data in phylogenetic reconstruction during more than three decades has greatly improved our understanding of the macroevolutionary history of the coffee family (Rubiaceae) and has provided a solid basis for improvement of its classification. Based on the results of 130 studies, among them most recent phylogenomic works, we
Sylvain G. Razafimandimbison   +1 more
wiley   +1 more source

Deep divergences in the coffee family and the systematic position of Acranthera [PDF]

open access: yes, 2018
Despite extensive efforts, there are unresolved questions on evolutionary relationships in the angiosperm family Rubiaceae. Here, information from six loci and 149 Rubiaceae taxa provide new insights. Acranthera and Coptosapelta are strongly supported as
Bremer, Birgitta   +4 more
core  

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