Contribution of anther color to interaction between plants and flower-visiting arthropods – usefulness of bioresource stocks

2021 ◽  
Author(s):  
Koichi Sugimoto ◽  
Tomoyuki Yokoi

It is very difficult to provide strong evidence of how flower characteristic that may serve to attract pollinators, improve plant fitness. We propose to use the natural variation that we have observed within our wild tomato (Solanum pimpinellifolium) plant stocks to investigate the effect of anther color on attracting flower-visiting arthropods which act as pollinators. By looking at within-species variation, we can vary anther color while keeping other factors like petal color and other genetically controlled variables constant. We believe that our proposed study makes a significant contribution to the literature because it will allow us to clearly determine the contribution of anther color in attracting pollinators.

Author(s):  
Reuven Dukas

Research in pollination biology has focused on the interactions between animals and the flowers they visit for food reward. However, other selective agents, including predators, seed feeders and herbivores, may affect pollination systems. Because flowers are predictable food sources for a variety of species, flowers are also reliable sites at which predators can locate flower-visiting animals. Prominent among pollinators' predators are beewolves (Philanthus spp), common sphecid wasps (Sphecidae) that prey almost exclusively on bees. My field work over three years indicates, first, that an area of approximately 50 square km surrounding a single bumblebee wolf (Philanthus bicinctus) aggregation had a low bumblebee (Bombus spp) density caused by intense predation by the wasps, and, second, that fruit set of the bumblebee pollinated western monkshood (Aconitum columbianum) was significantly lower at locations and times of bumblebee wolf activity than at control locations and times with no such predatory activity. These results indicate that predation can sometimes alter plant­pollinator interactions.


Genetics ◽  
2005 ◽  
Vol 171 (1) ◽  
pp. 345-357 ◽  
Author(s):  
Laura E. Rose ◽  
Charles H. Langley ◽  
Adriana J. Bernal ◽  
Richard W. Michelmore

2011 ◽  
Vol 101 (10) ◽  
pp. 1191-1201 ◽  
Author(s):  
M. J. Rodríguez-López ◽  
E. Garzo ◽  
J. P. Bonani ◽  
A. Fereres ◽  
R. Fernández-Muñoz ◽  
...  

Breeding of tomato genotypes that limit whitefly (Bemisia tabaci) access and feeding might reduce the spread of Tomato yellow leaf curl virus (TYLCV), a begomovirus (genus Begomovirus, family Geminiviridae) that is the causal agent of tomato yellow leaf curl disease. TYLCV is restricted to the phloem and is transmitted in a persistent manner by B. tabaci. The tomato breeding line ABL 14-8 was developed by introgressing type IV leaf glandular trichomes and secretion of acylsucroses from the wild tomato Solanum pimpinellifolium accession TO-937 into the genetic background of the whitefly- and virus-susceptible tomato cultivar Moneymaker. Results of preference bioassays with ABL 14-8 versus Moneymaker indicated that presence of type IV glandular trichomes and the production of acylsucrose deterred the landing and settling of B. tabaci on ABL 14-8. Moreover, electrical penetration graph studies indicated that B. tabaci adults spent more time in nonprobing activities and showed a reduced ability to start probing. Such behavior resulted in a reduced ability to reach the phloem. The superficial type of resistance observed in ABL 14-8 against B. tabaci probing significantly reduced primary and secondary spread of TYLCV.


2018 ◽  
Vol 9 ◽  
Author(s):  
Rozaimi Razali ◽  
Salim Bougouffa ◽  
Mitchell J. L. Morton ◽  
Damien J. Lightfoot ◽  
Intikhab Alam ◽  
...  

Euphytica ◽  
2018 ◽  
Vol 214 (4) ◽  
Author(s):  
Nicky Driedonks ◽  
Mieke Wolters-Arts ◽  
Heidrun Huber ◽  
Gert-Jan de Boer ◽  
Wim Vriezen ◽  
...  

PLoS ONE ◽  
2015 ◽  
Vol 10 (7) ◽  
pp. e0132535 ◽  
Author(s):  
Eguru Sreenivasa Rao ◽  
Palchamy Kadirvel ◽  
Rachael C. Symonds ◽  
Subramaniam Geethanjali ◽  
Ramadihalli N. Thontadarya ◽  
...  

AoB Plants ◽  
2021 ◽  
Author(s):  
Carla J Essenberg

Abstract Within-species variation in traits such as petal size or color often provides reliable information to pollinators about the rewards offered to them by flowers. In spite of potential disadvantages of allowing pollinators to discriminate against less-rewarding flowers, examples of informative floral signals are diverse in form and widely distributed across plant taxa, apparently having evolved repeatedly in different lineages. Although hypotheses about the adaptive value of providing reward information have been proposed and tested in a few cases, a unified effort to understand the evolutionary mechanisms favoring informative floral signals has yet to emerge. This review describes the diversity of ways in which floral signals can be linked with floral rewards within plant species and discusses the constraints and selective pressures on floral signal-reward relationships. It focuses particularly on how information about floral rewards can influence pollinator behavior and how those behavioral changes may, in turn, affect plant fitness, selecting either for providing or withholding reward information. Most of the hypotheses about the evolution of floral signal-reward relationships are, as yet, untested, and the review identifies promising research directions for addressing these considerable gaps in knowledge. The advantages and disadvantages of sharing floral reward information with pollinators likely play an important role in floral trait evolution, and opportunities abound to further our understanding of this neglected aspect of floral signaling.


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