Results 51 to 60 of about 920 (188)

Phylogenomics and topological conflicts in the tribe Anthospermeae (Rubiaceae). [PDF]

Ecol Evol
Genomic data have provided new opportunities to address phylogenetic incongruence and its bases. Our work shows notable intergenomic incongruence in a tribe of the coffee family, and the null hypothesis of congruence among all sequenced loci in the individual genomes was surprisingly rejected for plastid data.
Thureborn O, Wikström N, Razafimandimbison SG, Rydin C.   +3 more
europepmc   +2 more sources

Amphistemon and Thamnoldenlandia, two new genera of Rubiaceae (Spermacoceae) endemic to Madagascar [PDF]

Botanical Journal of the Linnean Society, 2010
Inge Groeninckx, Petra De Block, Elmar Robbrecht, Erik Smets, Steven Dessein   +4 more
openalex   +2 more sources

(2707) Proposal to conserve the name Psyllocarpus against Tapanhuacanga (Rubiaceae: Spermacoceae) [PDF]

Taxon, 2019
João Afonso Martins do Carmo, Roberto M. Salas, Sandra V. Sobrado, André Olmos Simões   +3 more
openalex   +2 more sources

Borreria santacruciana y Mitracarpus bicrucis (Rubiaceae - Spermacoceae) nuevas especies de Bolivia

Darwiniana, 2005
Dos especies nuevas de Bolivia, Borreria santacruciana y Mitracarpus bicrucis, se describen e ilustran. B. santacruciana es afín a B. wunschmanii, pero difiere por tener una pubescencia inconspicua de pelos adpresos, hojas de 7-17 mm long., y ...
Nélida M. Bacigalupo, Elsa L. Cabral
doaj   +1 more source

Cyclotide discovery in Gentianales revisited--identification and characterization of cyclic cystine-knot peptides and their phylogenetic distribution in Rubiaceae plants. [PDF]

Biopolymers, 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 ...
Koehbach J, Attah AF, Berger A, Hellinger R, Kutchan TM, Carpenter EJ, Rolf M, Sonibare MA, Moody JO, Wong GK, Dessein S, Greger H, Gruber CW.   +12 more
europepmc   +2 more sources

An Approach to Spermacoceae Cham. & Schltdl. sensu lato from the view-point of certain floral characters

Contribuciones a las ciencias sociales, 2023
Spermacoceae sensu lato is a tribe of the subfamily Rubioideae (Rubiaceae) that is referred in the literature with problems of generic delimitations.
C. H. Ramos, A. F. dos Santos, L. A. de Souza   +2 more
semanticscholar   +1 more source

New chromosome counts on Rubiaceae from Africa and the Western Indian Ocean islands

Nordic Journal of Botany, Volume 2023, Issue 5, May 2023., 2023
Cytological studies can provide important insights into circumscription and relationships within plant groups. Nevertheless, there is a considerable lack of cytological information, especially for large and complex groups such as the coffee family (Rubiaceae) and for plants from Africa and the Western Indian Ocean islands. In the present study, 110 new
Michael Kiehn, Andreas Berger
wiley   +1 more source

Correlation of self‐ and interspecific incompatibility among sympatric Hedyotis species (Rubiaceae) and consequences for hybridization

Journal of Systematics and Evolution, Volume 60, Issue 5, Page 998-1011, September 2022., 2022
Distyly in Hedyotis bodinieri (top left, pin morph; lower left, thrum morph) and growth of Hedyotis vachellii pollen (thrum morph) on the stigma of Hedyotis acutangula (pin morph). Abstract Breakdown of self‐incompatibility increases opportunities for both self‐fertilization and interspecific hybridization, although the latter is dependent on the ...
Mahadura A. Dias, Richard M. K. Saunders
wiley   +1 more source

Genero Galianthe Subg. Ebelia (Rubiaceae: Spermacoceae): Estudio Palinologico

Annals of the Missouri Botanical Garden, 1997
Stella Maris Piré
openalex   +4 more sources

Ecological and geological processes impacting speciation modes drive the formation of wide‐range disjunctions within tribe Putorieae (Rubiaceae)

Journal of Systematics and Evolution, Volume 59, Issue 5, Page 915-934, September 2021., 2021
Wide‐range geographically discontinuous distributions have long intrigued scientists. We explore the role of ecology, geology, and dispersal in the formation of these large‐scale disjunctions, using the angiosperm tribe Putorieae (Rubiaceae) as a case study. From DNA sequences of nuclear ITS and six plastid markers, we inferred a phylogeny, obtained an
Mario Rincón‐Barrado, Sanna Olsson, Tamara Villaverde, Belén Moncalvillo, Lisa Pokorny, Alan Forrest, Ricarda Riina, Isabel Sanmartín   +7 more
wiley   +1 more source