Results 121 to 130 of about 17,455 (256)

Outcrossing Rate and Genetic Variability in Mexican Race Avocado

Journal of the American Society for Horticultural Science, 2019
The blooming behavior of the avocado Persea americana Mill. is a sophisticated mechanism that prevents effective self-pollination, enables close pollination, and encourages cross-pollination.
Enrique I. Sánchez-González, Adriana Gutiérrez-Díez, Netzahualcóyotl Mayek-Pérez   +2 more
doaj   +1 more source

Outcrossing and Sex Function in Hermaphrodites: A Resource-Allocation Model

, 1983
Genetic estimates of outcrossing rates in seed plants usually measure the ovule or seed outcrossing rate only. However, there is good evidence for population variation in pollen fertility, which may result in sharply different ovule and pollen ...
Ross, M. D.
core   +1 more source

Pollination by long‐proboscid horseflies and its implications for reproductive isolation among coflowering Satyrium orchids in South Africa

American Journal of Botany, Volume 113, Issue 6, June 2026.
Abstract Premise Floral adaptations to pollinators can drive lineage diversification and promote coexistence of species. We investigated the reproductive biology of Satyrium longicolle, a South African orchid that we hypothesized to belong to a long‐proboscid horsefly pollination guild and examined overlap of pollinators and floral traits among ...
Steven D. Johnson, Matthew Moir, Ethan Newman, Timotheüs Van der Niet   +3 more
wiley   +1 more source

First report of natural outcrossing in pigeonpea from China [PDF]

, 2002
Natural outcrossing in pigeonpea (Cajanus cajan) is primarily responsible for the deterioration of purity of cultivars and genetic stocks. Several insects are responsible for transferring pollen from one plant to another within and across the fields.
Pang, Wen, Saxena, K B, Shiying, Y, Guangtian, W, Ziping, H   +4 more
core  

Ensemble Modeling Reveals Threats to Pollination Services From Asynchronous Range Shifts Between Camellia oleifera and Its Specialized Wild Bee Pollinators

Ecology and Evolution, Volume 16, Issue 6, June 2026.
This study employed ensemble species distribution models (SSDMs) to project the potential distributions of C. oleifera and these two key pollinators under current and future climate scenarios. We integrated field survey data with open biodiversity database records to simulate suitable habitats and quantify their spatiotemporal overlap.
Linjie Chen, Youjin Hao, Xue Ruan, Siwen Liu, Peiru Shi, Bingchuan Zhang, Dunyuan Huang   +6 more
wiley   +1 more source

Sex Determination in Sponges

Molecular Reproduction and Development, Volume 93, Issue 6, June 2026.
ABSTRACT Sex determination in Porifera remains one of the least understood aspects of early metazoan biology despite the group's key phylogenetic position. Sponges display exceptional diversity in sexual systems—ranging from stable gonochorism to sequential hermaphroditism and sex reversal—yet lack morphological dimorphism and any discrete gonadal ...
Jose M. Lorente‐Sorolla, Ana Riesgo
wiley   +1 more source

Variation in pollen limitation among reproductive modules points to likely resource reallocation in the alpine plant Veratrum grandiflorum

Nordic Journal of Botany, Volume 2026, Issue 6, June 2026.
Pollen limitation, a decrease in seed production due to insufficient pollen receipt, may influence plant demography and the evolution of sexual systems. Its empirical estimation of pollen supplementation of some of the flowers on an individual is well known to be prone to overestimation due to potential resource reallocation among the individual's ...
Xia Jiang, Kai‐Hsiu Chen, Shengman Lyu, Ling Liu, Meixian Yu, John R. Pannell, Guoxing Cao   +6 more
wiley   +1 more source

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

Nordic Journal of Botany, Volume 2026, Issue 6, June 2026.
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

Predicted outcrossing rates (%) for distances beyond 25 m.

, 2015
Predicted outcrossing rates (%) for distances beyond 25 m.
Hugo Raúl Uribe Montes (768356), Luciano Castro Espinoza (768345), José Luis Guzmán Rodríguez (768350), Oscar Heredia Díaz (768351), Francisco Zavala García (768357), Marco Antonio Gutiérrez (5664355), Juvencio González García (768349), Jesús Ignacio Madueño Martínez (768353), Juan Manuel de la Fuente Martínez (768347), Baltazar M. Baltazar (768344), Adam W. Schapaugh (768354), Armando Espinoza Banda (768346), Michael J. Horak (768352), Duška Stojšin (768355), José Antonio Garzón Tiznado (768348)   +14 more
core   +1 more source

Adaptive floral traits that impact stigma pollen load and seed production in Penstemon digitalis (Plantaginaceae)

Nordic Journal of Botany, Volume 2026, Issue 6, June 2026.
Penstemon digitalis is an early spring‐flowering species of the northwest Missouri prairie community, a period often characterized by low and unpredictable bee visitation. We conducted an experimental field study to evaluate how pollinator‐mediated pollen transfer and floral longevity interact to influence pollen acquisition and seed production.
Gregg Dieringer, Leticia Cabrera R.
wiley   +1 more source