Results 21 to 30 of about 1,192 (185)

Mating strategies of Vitex negundo L. var. heterophylla (Franch.) Rehder (Lamiaceae): A mixed mating system with inbreeding depression. [PDF]

Ecol Evol
We evaluated reproductive success through artificial pollination to explore the reproductive characteristics of Vitex negundo var. heterophylla for the first time. From the results of fruit set, there is a mixed mating system dominated by outcrossing in V. negundo var.
Zhang Q, Zhang J, Sun X, Wang F, Wang R, Wang H, Zheng P.   +6 more
europepmc   +2 more sources

The impacts of flowering phenology on the reproductive success of the narrow endemic Nouelia insignis Franch. (Asteraceae). [PDF]

Ecol Evol, 2021
Natural population of Nouelia insignis exhibited high flowering synchrony with relatively stable flowering duration, and the flowering time fluctuated greatly between years depending on the rainfall 5 months before flowering. The pollination of N. insignis required pollinators, and insect activities might play a very important role in the pollination ...
Liu F, Gao C, Chen M, Tang G, Sun Y, Li K.   +5 more
europepmc   +2 more sources

Genetic differentiation between two varieties of Oreocharis benthamii (Gesneriaceae) in sympatric and allopatric regions. [PDF]

Ecol Evol, 2020
Introgression between closely related species occurs commonly where their distributions overlap, leading to their becoming more morphologically and genetically similar. However, few of these studies have looked at intraspecific cases, especially in plants. Here, we report a reverse situation that the genetic variance between two varieties of Oreocharis
Fu Q, Lu GH, Fu YH, Wang YQ.
europepmc   +2 more sources

Towards a better understanding of the relationships between pollinators, human well‐being, and medicine plants in the Great Lakes Region of Eastern North America

PLANTS, PEOPLE, PLANET, Volume 5, Issue 6, Page 842-851, November 2023., 2023
A diversity of values is needed to maximize the effectiveness of conservation planning, including policies and programs. The results of the United Nations Biodiversity Conference (COP 15) in Montreal, Canada, highlight the importance of a shift towards recognizing multiple ways of knowing in ecology and conservation.
Shelby D. Gibson, Sheila R. Colla
wiley   +1 more source

Pollination mode and reproductive system of Sanguisorba minor and Sanguisorba officinalis

Plant Species Biology, Volume 38, Issue 4, Page 171-179, July 2023., 2023
Within one plant clade, often species with different pollination modes (e.g., wind and insect pollination) exist. We investigate the pollination and reproductive strategies of Sanguisorba minor and Sanguisorba officinalis and document remarkable differences between the two species.
Stefan Abrahamczyk, Jan‐Hendrik Struck, Maximilian Weigend   +2 more
wiley   +1 more source

Beyond pollen:ovule ratios: Evolutionary consequences of pollinator dependence and pollination efficiency for pollen and ovule production in angiosperms

American Journal of Botany, Volume 110, Issue 6, June 2023., 2023
Abstract Premise The relative per‐flower production of ovules and pollen varies broadly with angiosperm mating systems, with outcrossing types commonly producing more pollen grains per ovule than selfing types. The evolutionary causes of this variation are contentious, especially the relevance of pollination risk.
Lawrence D. Harder, Steven D. Johnson
wiley   +1 more source

Strong conservatism of floral morphology during the rapid diversification of the genus Helianthemum

American Journal of Botany, Volume 110, Issue 5, May 2023., 2023
Abstract Premise Divergence of floral morphology and breeding systems are often expected to be linked to angiosperm diversification and environmental niche divergence. However, available evidence for such relationships is not generalizable due to different taxonomic, geographical and time scales.
Sara Martín‐Hernanz, Rafael G. Albaladejo, Sébastien Lavergne, Encarnación Rubio, Macarena Marín‐Rodulfo, Juan Arroyo, Abelardo Aparicio   +6 more
wiley   +1 more source

The best of two worlds: ecology and evolution of ambophilous plants

Biological Reviews, Volume 98, Issue 2, Page 391-420, April 2023., 2023
ABSTRACT Ambophily, the mixed mode of wind and insect pollination is still poorly understood, even though it has been known to science for over 130 years. While its presence has been repeatedly inferred, experimental data remain regrettably rare. No specific suite of morphological or ecological characteristics has yet been identified for ambophilous ...
Stefan Abrahamczyk, Jan‐Hendrik Struck, Maximilian Weigend   +2 more
wiley   +1 more source

Sex ratio, floral traits, and genetic variation of androdioecious Osmanthus fragrans L. (Oleaceae) and the implications for maintenance of high male frequency

Ornamental Plant Research, 2022
Several examples of androdioecy appear to have evolved from dioecy and have low male frequency (< 0.5). However, the evolutionary pathway to androdioecy in Oleaceae may come from hermaphroditism. Osmanthus fragrans L.
Lihua Zhou, Liyuan Yang, Qiu Fang, Bin Dong, Yiguang Wang, Shiwei Zhong, Zheng Xiao, Hongbo Zhao   +7 more
doaj   +1 more source

Reproductive characteristics, population genetics, and pairwise kinship inform strategic recovery of a plant species in a fragmented landscape

Conservation Science and Practice, Volume 5, Issue 4, April 2023., 2023
Combining population genetics and study of reproductive biology provides robust insights for conservation planning of threatened species. Abstract Population genetics and understanding of mating systems provide fundamental information for conservation planning.
Chantelle A. T. Doyle, Jia‐Yee Samantha Yap, Jason Bragg, Maurizio Rossetto, Andrew Orme, Mark J. K. Ooi   +5 more
wiley   +1 more source