Results 31 to 40 of about 464 (138)

Identification of two leafminer parasitoids (Hymenoptera: Eulophidae), Neochrysocharis formosa and Proacrias sp. from Australia, with both showing thelytoky and infection by Rickettsia

Austral Entomology, Volume 61, Issue 3, Page 358-369, August 2022., 2022
Abstract Liriomyza huidobrensis, L. sativae and L. trifolii are polyphagous agromyzid leafminers that have recently arrived in Australia, posing a threat to Australian vegetable and ornamental crops. Adventive and endemic hymenopteran parasitoids of agromyzid leafminers already present in Australia should assist in the management of these invasive ...
Xuefen Xu, Ary A Hoffmann, Paul A Umina, Marianne P Coquilleau, Alex Gill, Peter M Ridland   +5 more
wiley   +1 more source

Spontaneous parthenogenesis in the parasitoid wasp Cotesia typhae: low frequency anomaly or evolving process?

Peer Community Journal, 2022
Hymenopterans are haplodiploids and unlike most other Arthropods they do not possess sexual chromosomes. Sex determination typically happens via the ploidy of individuals: haploids become males and diploids become females.
Capdevielle Dulac, Claire, Benoist, Romain, Paquet, Sarah, Calatayud, Paul-André, Obonyo, Julius, Kaiser, Laure, Mougel, Florence   +6 more
doaj   +1 more source

Evolution of parasitoid host preference and performance in response to an invasive host acting as evolutionary trap

Ecology and Evolution, Volume 12, Issue 7, July 2022., 2022
Invasive species can act as an evolutionary trap for parasitoids when they are unsuitable for reproduction but indistinguishable from suitable hosts. Such incompatible interactions reduce parasitoids’ fitness and can reduce the viability of the population. Using an individual based model, we show how genetic variation in host preference and performance
Astrid Kruitwagen, Leo W. Beukeboom, Bregje Wertheim, G. Sander van Doorn   +3 more
wiley   +1 more source

Absence of complementary sex determination in two Leptopilina species (Figitidae, Hymenoptera) and a reconsideration of its incompatibility with endosymbiont‐induced thelytoky

Insect Science, Volume 29, Issue 3, Page 900-914, June 2022., 2022
Under complementary sex determination (CSD), if the fertilized eggs are homozygous, they develop into diploid males. Forms of thelytoky induced by endosymbiont lead to genome homozygosity as well. By presenting our results in two cynipid wasp species Leptopilina heterotoma and Leptopilina clavipes, we discuss the presumed incompatibility between CSD ...
Fangying Chen, Martijn Schenkel, Elzemiek Geuverink, Louis van de Zande, Leo W. Beukeboom   +4 more
wiley   +1 more source

Native egg parasitoids on Leptoglossus occidentalis Heidemann (Hemiptera: Coreidae) in Spain: Potential biological control agents?

Journal of Applied Entomology, Volume 146, Issue 5, Page 525-538, June 2022., 2022
Abstract Leptoglossus occidentalis Heidemann (Heteroptera: Coreidae), commonly known as western conifer seed bug (WCSB), is an invasive pest in the Mediterranean, where it has been associated with the decline of Pinus pinea L. kernel production. A biological control of WCSB populations with native egg parasitoids may reduce economic losses.
Laura Ponce‐Herrero, Ana Oliveira Farinha, Valentín Pando Fernández, Juan Alberto Pajares Alonso, Fernando Manuel Alves Santos   +4 more
wiley   +1 more source

Commodity risk assessment of Acer palmatum plants grafted on Acer davidii from China

EFSA Journal, Volume 20, Issue 5, May 2022., 2022
Abstract The European Commission requested the EFSA Panel on Plant Health to prepare and deliver risk assessments for commodities listed in Commission Implementing Regulation (EU) 2018/2019 as ‘High risk plants, plant products and other objects’. This Scientific Opinion covers plant health risks posed by 2‐year‐old bare rooted plants for planting of ...
EFSA Panel on Plant Health (PLH), Claude Bragard, Paula Baptista, Elisavet Chatzivassiliou, Francesco Di Serio, Josep Anton Jaques Miret, Annemarie Fejer Justesen, Alan MacLeod, Christer Sven Magnusson, Panagiotis Milonas, Juan A Navas‐Cortes, Stephen Parnell, Roel Potting, Philippe Lucien Reignault, Emilio Stefani, Hans‐Hermann Thulke, Wopke Van der Werf, Antonio Vicent Civera, Jonathan Yuen, Lucia Zappalà, Andrea Battisti, Hugo Mas, Daniel Rigling, Massimo Faccoli, Giovanni Iacopetti, Alžběta Mikulová, Olaf Mosbach‐Schulz, Fabio Stergulc, Paolo Gonthier   +28 more
wiley   +1 more source

Commodity risk assessment of bonsai plants from China consisting of Pinus parviflora grafted on Pinus thunbergii

EFSA Journal, Volume 20, Issue 2, February 2022., 2022
Abstract The European Commission requested the EFSA Panel on Plant Health to prepare and deliver a scientific opinion on the risk posed by bonsai plants from China consisting of Pinus parviflora grafted on Pinus thunbergii taking into account the available scientific information, including the technical information provided by China.
EFSA Panel on Plant Health (PLH), Claude Bragard, Paula Baptista, Elisavet Chatzivassiliou, Francesco Di Serio, Josep Anton Jaques Miret, Annemarie Fejer Justesen, Alan MacLeod, Christer Sven Magnusson, Panagiotis Milonas, Juan A Navas‐Cortes, Stephen Parnell, Roel Potting, Philippe Lucien Reignault, Emilio Stefani, Hans‐Hermann Thulke, Wopke Van der Werf, Antonio Vicent Civera, Jonathan Yuen, Lucia Zappalà, Andrea Battisti, Hugo Mas, Daniel Rigling, Massimo Faccoli, Giovanni Iacopetti, Alžběta Mikulová, Olaf Mosbach‐Schulz, Fabio Stergulc, Paolo Gonthier   +28 more
wiley   +1 more source

The role of endosymbionts in the evolution of haploid-male genetic systems in scale insects (Coccoidea) [PDF]

, 2012
There is an extraordinary diversity in genetic systems across species, but this variation remains poorly understood. In part, this is because the mechanisms responsible for transitions between systems are often unknown.
Pen, Ido, Ross, Laura, Normark, Benjamin B., Shuker, David M., Shuker, David Michael   +4 more
core   +1 more source

Haplodiploidy and the reproductive ecology of Arthropods [PDF]

, 2015
Approximately 15% of all arthropods reproduce through haplodiploidy. Yet it is unclear how this mode of reproduction affects other aspects of reproductive ecology.
Ross, Laura, Bain, Stevie A, De La Filia, Andres G, Bain, Stevie A., de la Fila, Andrés G.   +4 more
core   +1 more source

Frequent colony orphaning triggers the production of replacement queens via worker thelytoky in a desert-dwelling ant

, 2016
Although related, Cataglyphis floricola and C. tartessica show very different responses to colony orphaning. In the laboratory, under queenless conditions, C. tartessica workers produced male offspring via arrhenotoky, while C. floricola workers produced
Cerdá, Xim, Patrocinio Ortega, Ortega, Patrocinio, Fernando Amor, Amor, Fernando, Xim Cerdá, Boulay, Raphaël, Raphaël Boulay, Raphaël   +8 more
core   +2 more sources