Results 101 to 110 of about 4,367 (180)

Cheating honeybee workers produce royal offspring [PDF]

, 2008
The Cape bee (Apis mellifera capensis) is unique among honeybees in that workers can lay eggs that instead of developing into males develop into females via thelytokous parthenogenesis.
Allsopp, Michael, Jordan, Lyndon Alexander, Wossler, T., Allsopp, M., Oldroyd, Benjamin, Beekman, Madeleine, Wossler, Theresa, Beekman, M., Oldroyd, B., Jordan, L.   +9 more
core   +1 more source

Wolbachia infection in Argentinean populations of Anastrepha fraterculus sp1: preliminary evidence of sex ratio distortion by one of two strains

BMC Microbiology, 2019
Background Wolbachia, one of the most abundant taxa of intracellular Alphaproteobacteria, is widespread among arthropods and filarial nematodes. The presence of these maternally inherited bacteria is associated with modifications of host fitness ...
Claudia Alejandra Conte, Diego Fernando Segura, Fabian Horacio Milla, Antonios Augustinos, Jorge Luis Cladera, Kostas Bourtzis, Silvia Beatriz Lanzavecchia   +6 more
doaj   +1 more source

Mechanism of facultative parthenogenesis in the ant Platythyrea punctata

, 2011
Thelytokous parthenogenesis, the production of diploid female offspring from unfertilized eggs, can be caused by several cytological mechanisms, which have a different impact on the genetic variation on the offspring.
Kellner, Katrin, Heinze, Jürgen
core   +1 more source

Clonal reproduction and genetic caste differences in a queen-polymorphic ant, Vollenhovia emeryi [PDF]

, 2006
Most social Hymenoptera are characterized by simple haploid sex determination and environment-based caste differentiation. This appears to be strikingly different in the queen-polymorphic ant Vollenhovia emeryi.
Nakayama, Megumi, Heinze, Jürgen, Ohkawara, Kyohsuke, Satoh, Atsumi, Trindl, Andreas   +4 more
core   +2 more sources

Contagious parthenogenesis, automixis, and a sex determination meltdown

, 2010
Because of the twofold cost of sex, genes conferring asexual reproduction are expected to spread rapidly in sexual populations. However, in reality this simple prediction is often confounded by several complications observed in natural systems. Motivated
Engelstädter, J, Christoph Vorburger, Jan Engelstädter, Vorburger, C, Engelstaedter, Jan, Christoph Sandrock, Sandrock, Christoph, Vorburger, Christoph, Sandrock, C, Vorburger C, Engelstädter J, Sandrock C, Vorburger, Christoph (author), Engelstädter, Jan (author), Sandrock, Christoph (author)   +14 more
core   +1 more source

Automictic parthenogenesis in the parasitoid Venturia canescens (Hymenoptera: Ichneumonidae) revisited [PDF]

, 2000
Both arrhenotokous and thelytokous reproduction are known to occur in the parasitoid wasp Venturia canescens. The cytological mechanism of thelytoky was previously reported to involve the formation of a restitution metaphase after the reduction division,
Pijnacker, Laas P., Leo W Beukeboom, Beukeboom, Leo W., Laas P Pijnacker   +3 more
core   +2 more sources

Parthenogenesis did not consistently evolve in insular populations of Ischnura hastata (Odonata, Coenagrionidae) [PDF]

, 2016
1. The evolutionary advantages that have driven the evolution of sex are still very much debated, and a number of benefits of parthenogenesis over sexual reproduction have been proposed.
CHRISTOPHER HASSALL, Cordero-Rivera, A, Hassall, C, M. OLALLA LORENZO-CARBALLA, ADOLFO CORDERO-RIVERA, ANDREA C. ENCALADA, Encalada, AC, IAGO SANMARTÍN-VILLAR, YUSDIEL TORRES-CAMBAS, Lorenzo-Carballa, MO, Sanmartín-Villar, I, Torres-Cambas, Y, Sanmartin Villar, Iago, Encalada Romero, Andrea C., Lorenzo Carballa, María Olalla, Torres-Cambas, Yusdiel, Torres Cambas, Yusdiel, Cordero Rivera, Adolfo, Hassall, Christopher, Encalada, Andrea C.   +19 more
core   +1 more source

Geographic parthenogenesis: recurrent patterns down under.

, 2006
A recent study reports striking similarities in the origin and spread of parthenogenesis in two distantly related animals of the Australian arid zone, suggesting that the loss of sex was driven by a very general selective ...
Vorburger, C, Christoph Vorburger, Vorburger C   +2 more
core   +1 more source

Identification of Wolbachia Strains in Two Sibling Species of Neoseiulus Predatory Mites and Their Prey

Yüzüncü Yıl Üniversitesi Tarim Bilimleri Dergisi
Wolbachia screening in mites is necessary for understanding of how their biological functions can be affected, including development of approaches to induce parthenogenesis, making the predator’s cultures more effective and stable.
Julia Malysh, Svetlana Malysh, Olga V. Trapeznikova, Sergey Timofeev, Natalia Belyakova, Yuri Tokarev   +5 more
doaj  

Phenotypic evolution and parthenogenesis [PDF]

, 1983
Lynch, Michael, Gabriel, Wilfried
core   +1 more source