Bee species visiting Medicago sativa differ in pollen deposition curves with consequences for gene flow.

American Journal of Botany
Emmanuel Santa-MartinezJohanne Brunet

Abstract

Pollinator foraging behavior can influence pollen dispersal and gene flow. In many plant species a pollinator trips a flower by applying pressure to release its sexual organs. We propose that differences in tripping rate among grooming pollinators could generate distinct pollen deposition curves, the pattern of pollen deposition over successive flowers visited. This study compares the pollen deposition curves of two grooming pollinators, a social bumble bee and a solitary leafcutting bee, with distinct tripping rates on Medicago sativa flowers. We predict a steeper deposition curve for pollen moved by leafcutting bees, the pollinator with the higher tripping rate. Medicago sativa plants carrying a gene (GUS) whose product is easily detected by staining, were used as pollen donors. After visiting the GUS plants, a bee was released on a linear array of conventional M. sativa plants. The number of GUS pollen grains deposited over successive flowers visited or over cumulative distances was examined. Distinct mixed effect Poisson regression models, illustrating different rates of decay in pollen deposition, were fitted to the pollen data for each bee species. Pollen decay was steeper for leafcutting bees relative to bumble bees for ...Continue Reading

References

Feb 6, 2004·Evolution; International Journal of Organic Evolution·Maria Clara CastellanosJames D Thomson
Sep 22, 2006·Methods in Molecular Biology·Arlene A WiseAndrew N Binns
Sep 22, 2006·Methods in Molecular Biology·Deborah A Samac, Sandra Austin-Phillips
Jul 25, 2009·The American Naturalist·Shane A RichardsLawrence D Harder
Oct 17, 2009·Environmental Biosafety Research·Margit HarstReinhard Töpfer
Sep 3, 2010·Annual Review of Entomology·Theresa L Pitts-Singer, James H Cane
Apr 28, 2011·Evolution; International Journal of Organic Evolution·Heather F Sahli, Jeffrey K Conner
Apr 24, 2012·Evolution; International Journal of Organic Evolution·Mason W Kulbaba, Anne C Worley
Apr 23, 2014·American Journal of Botany·Norman C Ellstrand
Dec 29, 2016·PeerJ·Jamie R StavertIgnasi Bartomeus
Sep 1, 1982·Oecologia·Mary V Price, Nickolas M Waser
Nov 1, 1989·Evolution; International Journal of Organic Evolution·Diane R Campbell, Nickolas M Waser
May 1, 1989·Evolution; International Journal of Organic Evolution·James D Thomson, Barbara A Thomson
Feb 2, 2021·Frontiers in Plant Science·Johanne BrunetAustin A Bauer

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.