Article
Ecology
Miguel A. Cruz, Sara Magalhaes, Elio Sucena, Flore Zele
Summary: The study found that host-associated incompatibility contributes 1.5 times more than Wolbachia-induced incompatibility in reducing hybrid production, and the two sources of incompatibility act through different mechanisms in an additive fashion. In addition, near-complete F1 hybrid sterility was observed between populations of the two forms, with no contribution from Wolbachia.
Article
Ecology
Pawel Malec, Justus Weber, Robin Boehmer, Marc Fiebig, Denise Meinert, Carolin Rein, Ronja Reinisch, Maik Henrich, Viktoria Polyvas, Marie Pollmann, Lea von Berg, Christian Koenig, Johannes L. M. Steidle
Summary: This study identified early reproductive barriers in a local population of Nasonia vitripennis, including inbreeding, population structure, ecotypes, and barriers to reproduction. Inbreeding was observed within female strains, with a population structure defined by microsatellites. Two ecotypes were identified based on parasitism habits, with slight sexual isolation and a reduction in F1-female offspring observed between different strains and ecotypes. Ecotypes were separated mainly by ecological barriers, suggesting that sexual and premating barriers can precede ecological separation in speciation.
BMC ECOLOGY AND EVOLUTION
(2021)
Article
Marine & Freshwater Biology
Ivana Jezkova, Raquel Ortells, Javier Montero-Pau, Manuel Serra
Summary: This study reveals the presence of ongoing behavioral reproductive isolation in populations of Brachionus plicatilis rotifer, with a more pronounced isolation in populations with higher levels of adaptive divergence.
Article
Multidisciplinary Sciences
Sheela P. Turbek, Melanie Browne, Adrian S. Di Giacomo, Cecilia Kopuchian, Wesley M. Hochachka, Cecilia Estalles, Dario A. Lijtmaer, Pablo L. Tubaro, Luis Fabio Silveira, Irby J. Lovette, Rebecca J. Safran, Scott A. Taylor, Leonardo Campagna
Summary: Behavioral isolation can drive speciation by allowing the gradual accumulation of reproductive barriers between co-occurring organisms. In the case of two bird species within the southern capuchino seedeaters, behaviors indicating species recognition through song and plumage traits, as well as strong assortative mating related to genomic regions underlying male plumage patterning, suggest how novel sexual signals can quickly arise and maintain species boundaries.
Article
Ecology
Nolwenn Decanter, Romane Normand, Ahmed Souissi, Catherine Labbe, Eric Edeline, Guillaume Evanno
Summary: Different sperm traits between Lampetra fluviatilis and Lampetra planeri can affect male reproductive success and gene flow. However, there is no evidence for cryptic female choice or postmating prezygotic barriers, explaining the partial reproductive isolation between the two lamprey ecotypes.
ECOLOGY AND EVOLUTION
(2023)
Article
Multidisciplinary Sciences
Vincent Ficarrotta, Joseph J. Hanly, Ling S. Loh, Caroline M. Francescutti, Anna Ren, Kalle Tunstrom, Christopher W. Wheat, Adam H. Porter, Brian A. Counterman, Arnaud Martin
Summary: Mating cues play a crucial role in species formation and maintenance, but little is known about their divergence. This study investigates the genetic basis of UV iridescence in butterflies and reveals how mating cues diverge and integrate with other reproductive barriers to shape the genomic landscape of reproductive isolation.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Multidisciplinary Sciences
Manon Poignet, Lucie Barankova, Jiri Reif, Pavel Stopka, Romana Stopkova, Michaela Frolikova, Emily R. A. Cramer, Arild Johnsen, Pavel Kverek, Tomasz S. Osiejuk, Katerina Komrskova, Tomas Albrecht, Radka Reifova
Summary: Divergence in phenotypes and reproductive environments may contribute to postmating prezygotic isolation between species. In this study, differences in sperm morphology and velocity were examined in two hybridizing passerine species. Additionally, the proteome of the female reproductive tract fluid was characterized for the first time. The results showed that the size differences in the flagellum and acrosome of the sperm did not affect sperm velocity. Furthermore, the reproductive tract fluid did not have different effects on the velocity of conspecific and heterospecific sperm. These findings suggest that the observed differences may impact other postcopulatory processes related to sperm storage, longevity, or sperm-egg interaction.
SCIENTIFIC REPORTS
(2022)
Article
Plant Sciences
Sergei Volis, Yong-Hong Zhang, Michael Dorman, Richard J. Abbott
Summary: The study found that eco-geographical isolation does not necessarily lead to local adaptation or postzygotic reproductive isolation when environmental differences are subtle. The desert iris species, I. atrofusca, was reproductively isolated from the coastal species, I. atropurpurea, but not from the desert species, I. mariae, despite genetic similarities between the former two being closer.
Article
Biochemistry & Molecular Biology
Matthew J. Wersebe, Ryan E. Sherman, Punidan D. Jeyasingh, Lawrence J. Weider
Summary: Speciation genomic studies have shown that genomes of divergent lineages are shaped by gene flow, selection, recombination, and gene density. This study focused on the role of recombination and gene density in shaping differentiation patterns between the cyclically parthenogenetic ecological sister-taxa, Daphnia pulicaria and Daphnia pulex. The study found sex-specific recombination rates in D. pulicaria, with regions of high gene density and recombination being more divergent. The results suggest that selection plays a role in shaping genome-wide differentiation patterns in this species complex, despite high local recombination rates.
Article
Plant Sciences
Inna Osmolovsky, Mariana Shifrin, Inbal Gamliel, Jonathan Belmaker, Yuval Sapir
Summary: The continuous process of speciation results in different species at different stages of reproductive isolation. Studying the royal irises, a young group of species in the process of speciation, provides insight into the early steps of speciation. Pre-pollination barriers, such as eco-geographic divergence and phenological differentiation, were found to be the major contributors to reproductive isolation among the Iris species. Post-pollination barriers had negligible contributions to reproductive isolation. The study suggests that pre-zygotic barriers play a crucial role in speciation.
Letter
Ecology
David P. L. Toews, Marcella D. Baiz, Gunnar R. Kramer, Irby J. Lovette, Henry M. Streby, Scott A. Taylor
Summary: The study analyzes social pairing and reproductive isolation between Vermivora chrysoptera and V. cyanoptera, highlighting potential flaws in the study design and the need to consider factors such as plumage classification and extra-pair paternity in interpreting reproductive isolation. The central finding of strong reproductive isolation between the two species may be at odds with results from other long-term studies showing low isolation and high gene flow in the system.
ECOLOGY AND EVOLUTION
(2021)
Article
Genetics & Heredity
Ayako Izuno, Yusuke Onoda, Gaku Amada, Keito Kobayashi, Mana Mukai, Yuji Isagi, Kentaro K. Shimizu
Summary: This study examined how ecological divergence continues in the face of gene flow in the woody species Metrosideros polymorpha. The research found substantial genetic and phenotypic diversity among the three genetic clusters in different environments, and suggested that the ecological divergence possibly began before the species colonized the island of Hawaii.
Article
Food Science & Technology
Mark J. Margres, Kenneth P. Wray, Dragana Sanader, Preston J. McDonald, Lauren M. Trumbull, Austin H. Patton, Darin R. Rokyta
Summary: This study examines the venom dichotomy and potential ecological speciation among Timber Rattlesnake populations. By comparing genetic, proteomic, morphological, and ecological differences, it reveals signs of incipient ecological speciation between type A and type B C. horridus. However, range-wide analyses suggest a lack of reproductive isolation, indicating varying degrees of introgression across populations.
Article
Biochemistry & Molecular Biology
Adeola Oluwakemi Ayoola, Bao-Lin Zhang, Richard P. Meisel, Lotanna M. Nneji, Yong Shao, Olanrewaju B. Morenikeji, Adeniyi C. Adeola, Said Ng'ang'a, Babafemi G. Ogunjemite, Agboola O. Okeyoyin, Christian Roos, Dong-Dong Wu
Summary: This study provides insights into the genomic diversity, natural selection, and introgression in guenons, the most widely distributed nonhuman primate in the tropical forest belt of Africa. Differentiation between populations from East and West of the Niger River, potential introgression in the East population, and signals of positive natural selection in immunity and malaria resistance genes were observed. The study sheds light on the evolutionary processes shaping the genetic diversity of guenons.
MOLECULAR BIOLOGY AND EVOLUTION
(2021)
Article
Biochemistry & Molecular Biology
Polina Drozdova, Alexandra Saranchina, Ekaterina Madyarova, Anton Gurkov, Maxim Timofeyev
Summary: Ancient Lake Baikal is a speciation hotspot and the gammaroid amphipods are the most diverse group in the lake. Recent research has shown that one common species, Eulimnogammarus verrucosus, actually consists of at least three cryptic species. By analyzing the phylogeny, genome sizes, and reproductive compatibility, this study confirms the genetic separation between these species and highlights the need for precise tracking of sample origin in future studies.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Ecology
Janette W. Boughman, Richard Svanback
Article
Zoology
Jason Keagy, Victoria A. Braithwaite, Janette W. Boughman
Editorial Material
Behavioral Sciences
Janette W. Boughman
BEHAVIORAL ECOLOGY
(2018)
Article
Ecology
D. Justin Yeh, Janette W. Boughman, Glenn-Peter Saetre, Maria R. Servedio
Article
Biology
Amanda J. Moehring, Janette W. Boughman
Article
Biology
Skuli Skulason, Kevin J. Parsons, Richard Svanback, Katja Rasanen, Moira M. Ferguson, Colin E. Adams, Per-Arne Amundsen, Pia Bartels, Colin W. Bean, Janette W. Boughman, Goeran Englund, Johannes Gudbrandsson, Oliver E. Hooker, Alan G. Hudson, Kimmo K. Kahilainen, Rune Knudsen, Bjarni K. Kristjansson, Camille A-L. Leblanc, Zophonias Jonsson, Gunnar Ohlund, Carl Smith, Sigurdur S. Snorrason
BIOLOGICAL REVIEWS
(2019)
Article
Behavioral Sciences
Robert B. Mobley, Emily G. Weigel, Janette W. Boughman
Article
Biology
Robin M. Tinghitella, Alycia C. R. Lackey, Catherine Durso, Jennifer A. H. Koop, Janette W. Boughman
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2020)
Article
Fisheries
Jessica L. Sattler, Janette W. Boughman
JOURNAL OF FISH BIOLOGY
(2020)
Editorial Material
Biology
Courtney L. Fitzpatrick, S. Elizabeth Alter, Janette W. Boughman, Florence Debarre, Suzanne Edmands, Amanda Moehring, Leonie Moyle, Sarah P. Otto, Ophelie Ronce, Matthew J. Rubin, Andrea L. Sweigart
Article
Ecology
Janette W. Boughman, Maria R. Servedio
Summary: This paper discusses the influence of sexual selection on displays and preferences in the process of speciation. The study finds that many closely related species show significant differences in categorically different traits, which may be due to reproductive isolation caused by differences in displays and female preferences in different environments. The authors propose a model to explain this phenomenon and highlight the importance of condition-dependent displays and female preferences based on local ecology in speciation.
Article
Biology
Murielle Alund, Brooke Harper, Sigurlaug Kjaernested, Julian E. Ohl, John G. Phillips, Jessica Sattler, Jared Thompson, Javier E. Varg, Sven Wargenau, Janette W. Boughman, Jason Keagy
Summary: This study investigates the anti-predator behavior of Icelandic threespine sticklebacks in low-visibility environments. The results show that fish have different reactions to different predator cues and are greatly influenced by lighting conditions. Fish from highland lakes react fastest to mechano-visual cues and exhibit the highest activity levels.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2022)
Article
Ophthalmology
Ruth A. Frey, Lindsey M. Barrett, Lauren Parkin, Brittany Blakeley, Murielle Alund, Gregory Byford, Abigail Euhus, Christine Tsarnas, Janette W. Boughman, Deborah L. Stenkamp
Summary: This study found that damage to the visual system in wild populations of threespine stickleback fish resulted in regenerative responses, similar to what has been observed in captive zebrafish. The presence of eye flukes and their consumption of eye tissue contributed to the damage, but the stickleback retina displayed a proliferative response and laminar fusions, indicating a potential regenerative ability.
EXPERIMENTAL EYE RESEARCH
(2022)
Article
Cell Biology
Murielle Alund, Meredith Cenzer, Nicolas Bierne, Janette W. Boughman, Jose Cerca, Mattheau S. Comerford, Alessandro Culicchi, Brian Langerhans, S. Eryn Mcfarlane, Markus H. Most, Henry North, Anna Qvarnstrom, Mark Ravinet, Richard Svanback, Scott A. Taylor
Summary: Anthropogenic impacts on the environment have both positive and negative effects on speciation processes. Human activities can generate spatial isolation and genetic divergence, but they can also cause sudden secondary contact and hybridization. Changes in the environment created by human actions can create new ecological niches and drive diversification, but they can also lead to niche loss and extinctions. It is important to monitor and understand these impacts in order to promote diversification and enhance biodiversity.
COLD SPRING HARBOR PERSPECTIVES IN BIOLOGY
(2023)
Article
Biology
Jason Keagy, Whitley Lehto, Ross Minter, Sarah Machniak, Oynx Baird, Janette W. Boughman
Summary: Individuals can benefit from using social information to reduce sampling costs and increase foraging efficiency. The study investigated delayed local enhancement in two ecomorphs of stickleback fish from three lakes with independent evolutionary origins. The results showed that benthic fish in intact species-pair lakes were more likely to exhibit delayed local enhancement, despite their solitary behavior. Furthermore, the study found a reversal in social information use patterns in a hybrid swarm lake. These findings suggest parallel differentiation of social learning differences in recently evolved fish species.