Results 31 to 40 of about 114 (91)

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

Ecology and Evolution, Volume 10, Issue 14, Page 7792-7805, July 2020., 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
Qiong Fu, Guo‐Hui Lu, Yu‐Hui Fu, Ying‐Qiang Wang   +3 more
wiley   +1 more source

Four raised to one equals one: A genetic approach to the Pseudolaelia vellozicola complex does not follow a math rule

Ecology and Evolution, Volume 10, Issue 11, Page 4562-4569, June 2020., 2020
Analysis of genetic structure revealed that each of the eight sample localities can be considered unique biological populations as they are highly differentiated from each other. The results are consistent with that expected for plants with insular geographical distribution.
Alison Gonçalves Nazareno, Luiz Menini Neto, Renata Santiago de Oliveira Buzatti, Cássio van den Berg, Rafaela Campostrini Forzza   +4 more
wiley   +1 more source

Reproductive ecology of the threatened "star cactus" Astrophytum ornatum (Cactaceae): a strategy of continuous reproduction with low success

Botan‪ical Sciences, 2017
Background. There are no previous studies on the reproductive biology of the endemic and endangered cactus species Astrophytum ornatum. Questions. Is flowering continuous or episodic?
Maria Loraine Matias Palafox, Cecilia Leonor Jiménez-Sierra, Jordan Golubov, María C. Mandujano   +3 more
doaj   +1 more source

High incidence and correlates of dioecy in the flora of the Canadian Arctic Archipelago

Arctic Science, 2017
In comparing the incidence of dioecy in North American floras, we report a strong, positive correlation with increasing latitude. Dioecy in the High Arctic is highly correlated with woodiness, as elsewhere.
Peter G. Kevan, Becky Godglick
doaj   +1 more source

Floral morphometric analysis of Prosopis affinis Spreng. (Fabaceae) suggests flexibility of the reproductive system in isolated populations within the Brazilian Pampa

Annals of Forest Research, 2018
Morphological characteristics of inflorescences and flowers of Prosopis affinis growing in the Pampa biome were measured aiming to indirectly infer the species reproductive system.
Camila Carvalho de Gusmão Lôbo, Valdir Marcos Stefenon   +1 more
doaj   +1 more source

Breeding system of the Iberian endemic shrub Colutea hispanica (Leguminosae)

Anales del Jardín Botánico de Madrid, 2009
Plant breeding systems have been viewed as mechanisms to promote outcrossing in order to increase genetic variability and prevent inbreeding depression.
Sonia G. Rabasa, David Gutiérrez, Adrián Escudero   +2 more
doaj   +1 more source

Reproductive biology and conservation status of Leopoldia mira, Muscari sandrasicum and M. serpentinicum (Asparagaceae) [PDF]

Biodiversity Data Journal
Leopoldia mira, Muscari sandrasicum and M. serpentinicum are endemic grape hyacinth species restricted to serpentinous and calcareous habitats in south-western Anatolia, Türkiye.
Okan Çon, Mehmet Çiçek
doaj   +3 more sources

Delayed Self‐Pollination as the Primary Reproductive Strategy in Cypripedium shanxiense S. C. Chen: Observations From Beijing Songshan National Nature Reserve

Plant-Environment Interactions, Volume 6, Issue 4, August 2025.
ABSTRACT Studying the pollination biological characteristics of the rare and endangered plant Cypripedium shanxiense S. C. Chen will provide a scientific basis for formulating conservation strategies for the species. This study investigates the flowering phenology, pollination insects, and the process of pollination and fruiting of C. shanxiense at the
Qun Wang, Jing An, Meihong Zhu, Xing Zhang, Nan Wang, Baoqiang Zheng   +5 more
wiley   +1 more source

Reproductive Success Beyond Pollinators: Microhabitat Effects and Pollen Dynamics in Epipactis bugacensis, a Traditionally Obligately Autogamous Orchid

Plants
Orchid pollination is traditionally considered to rely on intact pollinarium transfer by animal vectors. Species lacking a functional viscidium are generally classified as obligately autogamous.
János György Nagy, Anna Morzsányi, Adrián Molnár, István Somogyi, Melinda Molnár, Miklós Sárospataki, Gábor Lőrinczi, Kamilla Nagy, Lilla Diána Gilián   +8 more
doaj   +1 more source

Honey bee contribution to canola pollination in Southern Brazil Abelhas melíferas na polinização de canola no Sul do Brasil

Scientia Agricola, 2011
Although canola, (Brassica napus L.), is considered a self-pollinating crop, researchers have indicated that crop productivity increases as a result of honey bee Apis mellifera L. pollination.
Annelise de Souza Rosa, Betina Blochtein, Diego Kweco Lima   +2 more
doaj   +1 more source