Results 71 to 80 of about 827 (191)

Evolution of distyly breakdown in Palicoureeae Robbr. & Manen and Psychotrieae Cham. & Schltdl. (Rubiaceae)

Acta Botânica Brasílica, 2022
Distyly is a floral polymorphism with reciprocal placement of male and female structures, heteromorphic self-incompatibility, and other ancillary traits. However, breeding system breakdowns and loss of polymorphism are common.
Ebenézer B. Rodrigues, Hélder Consolaro, Rocio Pérez-Barrales, Paulo Eugênio Oliveira   +3 more
doaj   +1 more source

Psychotria caraballoensis (Rubiaceae), a new species from northern Luzon, Philippines

Nordic Journal of Botany, Volume 2026, Issue 2, February 2026.
In this paper, we describe and illustrate Psychotria caraballoensis, a new endemic species from the Caraballo Mountain Range, Luzon, Philippines. It is allied to the Subalpina species group sensu Sohmer and Davis (2007), and resembles Psychotria sohotonensis.
Jenifer D. Pajarillaga, Jorge Anton D. Ordas, Eiana Joshier A. Odulio, Propa Joy S. Venturina, Cecilia B. Moran   +4 more
wiley   +1 more source

Three-dimensional reciprocity of floral morphs in wild flax (Linum suffruticosum): a new twist on heterostyly

, 2006
• Here, we studied the floral morphology and pollination of the distylous plant Linum suffruticosum (Linaceae) in southern Spain.• We observed a previously unreported form of distyly that involved twisting and bending of styles and stamens during floral ...
Arroyo, Juan, Pablo Vargas, Vargas, Pablo, Edwards, Mary E., Juan Arroyo, Edwards, M., W. Scott Armbruster, Armbruster, W. Scott, Vargas, P., Rocío Pérez‐Barrales, Pérez-Barrales, Rocio, Armbruster, Scott, Barrales, Rocio, Arroyo, J., Mary E. Edwards   +14 more
core   +1 more source

A pan‐European citizen science study shows population size, climate and land use are related to biased morph ratios in the heterostylous plant Primula veris

Journal of Ecology, Volume 114, Issue 1, January 2026.
A large‐scale citizen science study involving thousands of cowslip (Primula veris) observations from all over Europe revealed an unexpected prevalence of S‐morphs over L‐morphs, which was influenced by climatic as well as land use factors. Furthermore, general morph ratios were often unbalanced with the strongest shifts occurring in smaller populations.
Tsipe Aavik, Triin Reitalu, Marianne Kivastik, Iris Reinula, Sabrina Träger, Evelyn Uuemaa, Marta Barberis, Arjen Biere, Sílvia Castro, Sara A. O. Cousins, Anikó Csecserits, Eleftherios Dariotis, Živa Fišer, Grzegorz Grzejszczak, Cuong Nguyen Huu, Kertu Hool, Hans Jacquemyn, Margaux Julien, Marcin Klisz, Alexander Kmoch, Nikos Krigas, Attila Lengyel, Michael Lenhard, Desalew M. Moges, Zuzana Münzbergová, Ülo Niinemets, Baudewijn Odé, Hana Pánková, Meelis Pärtel, Ricarda Pätsch, Theodora Petanidou, Jan Plue, Radosław Puchałka, Froukje Rienks, Ioulietta Samartza, Julie K. Sheard, Bojana Stojanova, Joachim P. Töpper, Georgios Tsoktouridis, Spas Uzunov, Martin Zobel   +40 more
wiley   +1 more source

Deconstructing heterostyly: The evolutionary role of incompatibility system, pollinators, and floral architecture. Evolution 67 [PDF]

, 2013
Darwin's early work on heterostyly and related style polymorphisms (the presence of two or three style morphs within a population) generated much interest to understand how precise interactions between ecological and genetic mechanisms influence the
Alejandro Gonzalez-Voyer, Rocío Santos-Gally, Juan Arroyo   +2 more
core  

Biologia da polinização e sistema reprodutivo de Psychotria barbiflora DC. (Rubiaceae) Pollination biology and breeding system of Psychotria barbiflora DC. (Rubiaceae)

Acta Botânica Brasílica, 2004
O estudo foi realizado no período de abril/1999 a setembro/2000, no Parque Estadual Dois Irmãos, Recife (PE) Brasil, um remanescente de floresta Atlântica.
Luciana Almeida Gomes Teixeira, Isabel Cristina Machado   +1 more
doaj   +1 more source

Cleomaceae: diversity and potential of a model family for studies on the evolution of photosynthesis

Plant Biology, Volume 28, Issue 1, Page 6-17, January 2026.
The Cleomaceae family integrates floral diversity, physiological plasticity, and the evolution of C4 photosynthesis, serving as an important model to investigate plant adaptation and evolutionary innovation. Abstract Understanding the physiological and molecular mechanisms by which plants adapt to environmental factors is essential for improving crop ...
P. Falquetto‐Gomes, D. F. Parma, J. Souza‐Isabel, W. E. B. Barrios, A. P. M. Weber, W. L. Araújo, A. Nunes‐Nesi   +6 more
wiley   +1 more source

Flower morphology, nectar features, and hummingbird visitation to Palicourea crocea (Rubiaceae) in the Upper Paraná River floodplain, Brazil

Anais da Academia Brasileira de Ciências, 2006
We investigated flower morphology, nectar features, and hummingbird visitation to Palicourea crocea (Rubiaceae), a common ornithophilous shrub found in the riparian forest understory in the Upper Paraná River floodplain, Brazil. Flowers are distylous and
Luciana B. Mendonça, Luiz dos Anjos
doaj   +1 more source

Late-acting self-incompatibility and a narrow floral tube as underlying stylar dimorphism in Narcissus (Amaryllidaceae)

Ideas in Ecology and Evolution, 2018
Most heterostylous species show self- and intra-morph incompatibility and models established for such taxa have traditionally been applied to the evolution of stylar dimorphism and heterostyly in Narcissus, a genus with late-acting self-incompatibility ...
Violeta Irene Simón-Porcar
doaj  

Comparative Proteomic Analysis of Self‐Compatible Turnera Mutants Suggests Glutathione S‐Transferase 8 Is Involved in Overcoming S‐Morph Female Self‐Incompatibility Response

Plant Direct, Volume 9, Issue 12, December 2025.
ABSTRACT Distyly is a reproductive system, characterized by the presence of two floral morphs, which promotes outcrossing via physical and biochemical means. In distylous Turnera, the mating type of the S‐morph is determined by two genes: YUC6 (male) and BAHD (female).
Paige M. Henning, Paul D. J. Chafe, Hasan J. Hamam, Joel S. Shore   +3 more
wiley   +1 more source