Results 51 to 60 of about 31,612 (186)

Sexual reproduction in invasive Japanese knotweed (Reynoutria japonica) in south Sweden

Nordic Journal of Botany, EarlyView.
To understand the potential for northward expansion of knotweeds into currently uninvaded regions, it is crucial to assess the potential for sexual reproduction alongside the ongoing vegetative spread. For that reason, we tested viability in Reynoutria japonica seeds in south Sweden, a region where viable seeds had not been previously reported ...
Tina D'Hertefeldt, Annette Andersson, Ellen Andersson, Bea Nerer, Mattias West, Alexander Zimmerman   +5 more
wiley   +1 more source

Etude par les isozymes de la pollinisation libre de génotypes d'hévéas sauvages (Hevea brasiliensis Muell. Arg.) en verger à graines [PDF]

Biotechnologie, Agronomie, Société et Environnement, 2006
Survey of the open pollination by isozymes in a wild rubber trees (Hevea brasiliensis Muell. Arg.) seeds orchard. The Côte dʼIvoire has a wild rubber tree population for which an improvement in a seeds orchard is suggested by open pollination.
Clément-Demange A., Fanjavola M., N'Guetta ASP., Lidah YJ., Rodier GM.   +4 more
doaj  

New Temperature Sensitive Genic Male Sterile Lines with Better Outcrossing Ability for Production of Two-Line Hybrid Rice

Rice Science, 2015
An investigation was carried out with three newly developed temperature sensitive genic male sterile (TGMS) lines for their floral traits, seed production potential and outcrossing ability in ten cross combinations. In the TGMS lines, fertile pollens had
S.J. Arasakesary, S. Manonmani, R. Pushpam, S. Robin   +3 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

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

Exploring the relationship between tychoparthenogenesis and inbreeding depression in the Desert Locust, Schistocerca gregaria [PDF]

, 2017
Tychoparthenogenesis, a form of asexual reproduction in which a small proportion of unfertilized eggs can hatch spontaneously, could be an intermediate evolutionary link in the transition from sexual to parthenogenetic reproduction.
Blondin, Laurence, Chapuis, Elodie, Chapuis, Marie Pierre, Jourdan, Hélène, Little, Chelsea   +4 more
core   +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

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

Development and adoption of Kernza—A perennial grain crop for sustainable agriculture

PLANTS, PEOPLE, PLANET, EarlyView.
Annual cereal grains account for ~50% of human food calories, but cultivation of these crops has resulted in major environmental and social issues worldwide. For nearly three decades, researchers have been breeding intermediate wheatgrass—a perennial cool‐season grass—to serve as the world's first commercial‐scale perennial grain crop to improve ...
Jessica L. Gutknecht, James A. Anderson, George Annor, Prabin Bajgain, Timothy E. Crews, Colin Cureton, Lee DeHaan, Erin Meier, Tessa Peters, Valentín Picasso, Evelyn C. Reilly, Aaron Reser, Tara Ritter, Aubrey Streit Krug, Nicole Tautges, Jacob M. Jungers   +15 more
wiley   +1 more source