Results 71 to 80 of about 41,163 (289)

How and When Does Outcrossing Occur in the Predominantly Selfing Species Medicago truncatula?

Frontiers in Plant Science, 2021
Empirical studies on natural populations of Medicago truncatula revealed selfing rates higher than 80%, but never up to 100%. Similarly, several studies of predominantly selfing species show variability in the level of residual outcrossing between ...
Margaux Jullien, Joëlle Ronfort, Laurène Gay   +2 more
doaj   +1 more source

OVULE DISCOUNTING IN AN OUTCROSSING, CRYPTICALLY DIOECIOUS TREE [PDF]

Evolution, 2006
Ovule discounting denotes the reduction in the number of ovules available for cross-fertilization due to the interference of inferior pollen. Traditionally, ovule discounting has been discussed solely from the perspective of compromised outcrossing opportunities as a result of selfing, but the principle is more general.
Verdú, Miguel, González-Martínez, Santiago C., Montilla, Ana I., Mateu, Isabel, Pannell, John R.   +4 more
openaire   +6 more sources

Sex differences in host defence interfere with parasite-mediated selection for outcrossing during host–parasite coevolution

Ecology Letters, 2013
The Red Queen hypothesis proposes that coevolving parasites select for outcrossing in the host. Outcrossing relies on males, which often show lower immune investment due to, for example, sexual selection. Here, we demonstrate that such sex differences in
Leila Masri, R. Schulte, N. Timmermeyer, Stefanie Thanisch, Lena L. Crummenerl, Gunther Jansen, N. Michiels, H. Schulenburg   +7 more
semanticscholar   +1 more source

Generalist‐pollinated Arabis alpina exhibits floral scent variation at multiple scales

Nordic Journal of Botany, EarlyView.
Plants that depend on animals for reproduction often use complex floral traits to attract pollinators. Floral scent is recognized as part of the pollinator attraction module and can be shaped by plant‐pollinator interactions. In recent decades, research has started to reveal the dynamic properties of floral scent, identifying patterns of spatial and ...
Hanna Thosteman, Katherine Eisen, Clara McNaughton Montgomery, Xuefei Cheng, Loretta Pace, Magne Friberg   +5 more
wiley   +1 more source

The breeding system and effectiveness of introduced and native pollinators of the endangered tropical tree Goetzea elegans (Solanaceae)

Journal of Pollination Ecology, 2011
The impact of introduced species on native organisms is one of the main conservation concerns around the world. To fully understand the effect of introduced pollinators on native plants, it is important to know the reproductive biology of the focal ...
Marcos A. Caraballo-Ortiz, Eugenio Santiago-Valentín   +1 more
doaj   +1 more source

Mitonuclear Mismatch is Associated With Increased Male Frequency, Outcrossing, and Male Sperm Size in Experimentally-Evolved C. elegans

Frontiers in Genetics, 2022
We provide a partial test of the mitonuclear sex hypothesis with the first controlled study of how male frequencies and rates of outcrossing evolve in response to mitonuclear mismatch by allowing replicate lineages of C.
Brent W. Bever, Zachary P. Dietz, Jennifer A. Sullins, Ariana M. Montoya, Ulfar Bergthorsson, Vaishali Katju, Suzanne Estes   +6 more
doaj   +1 more source

Engaging the public in plant science: Communication facilitators and barriers of scaling up a citizen science campaign

People and Nature, EarlyView.
Abstract Volunteers have been involved in nature observations for decades through citizen science initiatives, providing large data sets as well as problem identification that allow a more complete understanding of many natural phenomena. Although communication is a core component in citizen science, the key factors that determine its effectiveness in ...
Kristiina Gibson, Monika Suškevičs, Baiba Prūse, Marta Barberis, Sara A. O. Cousins, Živa Fišer, Margaux Julien, Marianne Kivastik, Marcin Klisz, Attila Lengyel, Zuzana Münzbergová, Radosław Puchałka, Iris Reinula, Froukje Rienks, Julie Koch Sheard, Viktor Siverin, Bojana Stojanova, Sabrina Träger, Tsipe Aavik   +18 more
wiley   +1 more source

The potential of seedbank digital information in plant conservation

PLANTS, PEOPLE, PLANET, EarlyView.
Seedbanks are vital for biodiversity conservation, but their potential remains underutilised due to a limited understanding of the intraspecific genetic diversity they hold. By leveraging digitised data associated with seedbank collections, such as sampling locations, number of maternal plants and seed traits, we can attempt the estimation of genetic ...
Roberta Gargiulo, Sean Hoban, Anne M. Visscher, Pablo Gómez Barreiro, Roberta L. C. Dayrell, Kiran L. Dhanjal‐Adams, Alice R. Hudson, Charlotte E. Seal, Simon Kallow, Jan Sala, Lee Oliver, Naomi Carvey, Ted Chapman, Efisio Mattana, Clare Callow, Christopher Cockel, Michael F. Fay, Juan Viruel, Inna Birchenko, Stephanie Miles, Timothy Pearce, Paul Kersey, Elinor Breman, Kate A. Hardwick   +23 more
wiley   +1 more source

Evolution of the Selfing Syndrome in Arabis alpina (Brassicaceae). [PDF]

PLoS ONE, 2015
The transition from cross-fertilisation (outcrossing) to self-fertilisation (selfing) frequently coincides with changes towards a floral morphology that optimises self-pollination, the selfing syndrome.
Andrew Tedder, Samuel Carleial, Martyna Gołębiewska, Christian Kappel, Kentaro K Shimizu, Marc Stift   +5 more
doaj   +1 more source

Catalysts for change: Museum gardens in a planetary emergency

PLANTS, PEOPLE, PLANET, EarlyView.
Natural history museums are often seen as places with indoor galleries full of dry‐dusty specimens, usually of animals. But if they have gardens associated with them, museums can use living plants to create narratives that link outside spaces to inside galleries, bringing to life the challenges facing biodiversity.
Ed Baker, Paul Kenrick, Sandra Knapp, Tom McCarter, John Tweddle   +4 more
wiley   +1 more source