Article
Biochemistry & Molecular Biology
Jordan B. Bemmels, Ashley C. Bramwell, Sean A. S. Anderson, Vanessa E. Luzuriaga-Aveiga, Else K. Mikkelsen, Jason T. Weir
Summary: The study found that a period of contact and elevated hybridization between sympatric eastern North American populations of two cryptic bird species preceded a major increase in reproductive isolation between these populations within the last 10,000 years. The increased reproductive isolation in the sympatric eastern region was not accompanied by character displacement in key morphometric traits, plumage coloration, or ecological traits.
Article
Ecology
Carlie B. Anderson, Oscar Ospina, Peter Beerli, Alan R. Lemmon, Sarah E. Banker, Alyssa Bigelow Hassinger, Mysia Dye, Michelle L. Kortyna, Emily Moriarty Lemmon
Summary: Species interactions can drive evolutionary outcomes, such as speciation by cascade reinforcement. This process occurs when mating traits diverge due to selection against hybridization, leading to reproductive isolation within the same species. In this study, the researchers investigated the population genetics of cascade reinforcement in North American chorus frogs and found evidence of hybridization among different taxa and unidirectional gene flow. They also discovered significant genetic structuring within the focal species, characterized by different clusters and sub-structuring between reinforced and nonreinforced populations. This research strengthens the understanding of cascade reinforcement and its contribution to species proliferation.
ECOLOGY AND EVOLUTION
(2023)
Article
Biochemistry & Molecular Biology
Joan C. Hinojosa, Leonardo Dapporto, Camille Pitteloud, Darina Koubinova, Juan Hernandez-Roldan, Juan Carlos Vicente, Nadir Alvarez, Roger Vila
Summary: The importance of hybridization and introgression in plant evolution has been well documented, but its role in insects is not fully understood. This study used Spialia butterflies as an insect model and genomic evidence to show that hybridization promotes novel diversity. The researchers found evidence of interspecific gene flow between Spialia orbifer, S. rosae, and S. sertorius, suggesting that hybridization plays a significant role in the evolution of insects.
Article
Ecology
Erin A. Tripp, Kyle G. Dexter, Heather B. Stone
Summary: This study provides evidence of reproductive character displacement in a diverse lineage of Neotropical plants (Ruellia; Acanthaceae). Interspecific hand pollinations showed that crosses between species with greater differences in overall flower size, especially in style length, were less likely to produce viable seeds. The findings suggest that competition for pollinators and reinforcement to avoid costly interspecific mating both contribute to this pattern of reproductive character displacement.
ECOLOGY AND EVOLUTION
(2021)
Article
Ecology
Salvatore Cozzolino, Giovanni Scopece, Pierluigi Cortis, Maria Rosaria Barone Lumaga, Donata Cafasso, Manfred Ayasse
Summary: This study investigates the character divergence between two well-separated orchid species that share the same pollinator. The results suggest the presence of reproductive character displacement, as sympatric individuals of these species show greater divergence in floral characters involved in reproductive isolation. Experimental evidence further confirms that artificial sympatry leads to increased hybridization between allopatric individuals, resulting in hybrids with lower pollination success and seed viability.
EVOLUTIONARY ECOLOGY
(2022)
Review
Biology
Claudia Kohler, Katarzyna Dziasek, Gerardo Del Toro-De Leon
Summary: The endosperm is a developmental innovation of angiosperms that supports embryo growth and germination, while also preventing hybridization between different species to drive plant evolution. Current genetic approaches have revealed a significant role for epigenetic processes in establishing reproductive barriers in the endosperm.
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2021)
Article
Biochemistry & Molecular Biology
Ningning Wu, Elizabeth Evans, Bas van Schooten, Jesyka Melendez-Rosa, Yadira Ortiz, Silvia M. Planas Soto-Navarro, Steven M. Van Belleghem, Brian A. Counterman, Riccardo Papa, Wei Zhang
Summary: This study examines the gene expression profiles and genomic divergence of three sensory tissues between sexes and life stages in two hybridizing butterflies. The research found evidence of widespread gene expression divergence, supporting the crucial role of sensory tissues in the establishment of species barriers. The study also reveals that sensory diversification increases in a manner consistent with evolutionary divergence.
MOLECULAR BIOLOGY AND EVOLUTION
(2022)
Article
Ecology
Tian Xia, Taira Nishimura, Nobuaki Nagata, Kohei Kubota, Teiji Sota, Yasuoki Takami
Summary: Secondary contact and selection against maladaptive hybridization can lead to reinforcement and reproductive character displacement between populations in contact. This can generate downstream reproductive isolation and contribute to speciation.
JOURNAL OF EVOLUTIONARY BIOLOGY
(2023)
Article
Biology
Jennifer Walsh, Shawn M. Billerman, Bronwyn G. Butcher, Vanya G. Rohwer, David P. L. Toews, Vicens Vila-Coury, Irby J. Lovette
Summary: Genome-wide analyses of admixture between two closely related North American oriole species reveal longstanding barriers to reproductive isolation. This study provides insights into the mechanisms that facilitate and inhibit speciation using a hybrid zone between the Baltimore and Bullock's orioles. The findings highlight the complex interactions between pre- and post-mating barriers and the rapid accumulation of barriers between these species.
COMMUNICATIONS BIOLOGY
(2023)
Article
Plant Sciences
Rongli Liao, Weibang Sun, Yongpeng Ma
Summary: This study investigates hybridization of Buddleja plants in disturbed habitats, finding that most hybrids are F(1)s and gene flow is limited by mainly F-1 hybrids, maintaining species boundaries. Evidence suggests B. crispa as the maternal parent in one population and predicts a unidirectional hybridization pattern in another.
Article
Multidisciplinary Sciences
Sean A. S. Anderson, Jason T. Weir
Summary: The study found that closely related species pairs in sympatry exhibit exaggerated trait differences, likely due to enhanced divergent selection in sympatry. Additionally, a latitudinal gradient in trait divergence was detected, with the strongest effects observed in tropical regions.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Behavioral Sciences
Alex Van Huynh, Amber M. Rice
Summary: Preferences for mating cues, including odor signals, can impact speciation and reproductive isolation in natural hybrid zones. Hybrid individuals show varying preferences for parental species cues, with male hybrids showing overall no preference and female hybrids showing a preference for black-capped chickadee odor dependent on their black-capped ancestry. These preferences may play a role in reproductive isolation and the movement of hybrid zones.
BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY
(2021)
Article
Ecology
Linyi Zhang, Glen R. Hood, Isaac Carroo, James R. Ott, Scott P. Egan
Summary: Divergent selection between alternative environments plays a crucial role in reproductive isolation, but the importance of within-environment variation in differentiation between lineages has been overlooked. This study revealed weak hybrid inviability between host-associated lineages of B. treatae despite strong genomic differentiation, with great variation in hybrid fitness observed on individual trees. Considering the environmental context of hybridization is essential for predicting divergence under variable selection.
AMERICAN NATURALIST
(2021)
Article
Evolutionary Biology
Kate L. Ostevik, Joanna L. Rifkin, Hanhan Xia, Mark D. Rausher
Summary: Hybridization between two different morning glory species can affect the strength of reproductive barriers, with asymmetric effects on barrier strength and potential changes to within-species compatibility. The study found that changes in compatibility between sympatric populations of the morning glory species may be due to introgression of alleles from one species into the other. This suggests that hybridization can influence not only isolation between species, but also contribute to isolation within a species.
Article
Zoology
W. Bryan Jennings, Igor C. A. Souto-Santos, Paulo A. Buckup, Eugenia Zandona
Summary: The study aims to understand the reproductive barriers between closely related species through analyzing the mismatched genitalia in Phalloceros fishes. The findings support the hypothesis that the mismatched genitalia prevent hybridization between sympatric species of Phalloceros fishes.
ZOOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
(2023)
Article
Evolutionary Biology
Brandi S. Coyner, Peter J. Murphy, Marjorie D. Matocq
BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
(2015)
Article
Biodiversity Conservation
Richard D. Inman, Todd C. Esque, Kenneth E. Nussear, Philip Leitner, Marjorie D. Matocq, Peter J. Weisberg, Thomas E. Dilts
BIOLOGICAL CONSERVATION
(2016)
Article
Zoology
Ned A. Dochtermann, Marjorie D. Matocq
Article
Ecology
Thomas E. Dilts, Peter J. Weisberg, Philip Leitner, Marjorie D. Matocq, Richard D. Inman, Kenneth E. Nussear, Todd C. Esque
ECOLOGICAL APPLICATIONS
(2016)
Article
Ecology
Christina F. Frare, Marjorie D. Matocq, Chris R. Feldman, Angela M. White, Patricia N. Manley, Kathleen D. Jermstad, Evon R. Hekkala
JOURNAL OF WILDLIFE MANAGEMENT
(2017)
Article
Zoology
Ned A. Dochtermann, Marjorie D. Matocq
Review
Ecology
Catherine Badgley, Tara M. Smiley, Rebecca Terry, Edward B. Davis, Larisa R. G. DeSantis, David L. Fox, Samantha S. B. Hopkins, Tereza Jezkova, Marjorie D. Matocq, Nick Matzke, Jenny L. McGuire, Andreas Mulch, Brett R. Riddle, V. Louise Roth, Joshua X. Samuels, Caroline A. E. Stroemberg, Brian J. Yanites
TRENDS IN ECOLOGY & EVOLUTION
(2017)
Article
Biodiversity Conservation
Philip Leitner, Jennifer Rippert, Marjorie D. Matocq
WESTERN NORTH AMERICAN NATURALIST
(2017)
Article
Zoology
Eveline S. Larrucea, Morgan L. Robinson, Jennifer S. Rippert, Marjorie D. Matocq
JOURNAL OF MAMMALOGY
(2018)
Article
Evolutionary Biology
Joshua P. Jahner, Marjorie D. Matocq, Jason L. Malaney, Mike Cox, Peregrine Wolff, Mitchell A. Gritts, Thomas L. Parchman
EVOLUTIONARY APPLICATIONS
(2019)
Article
Biodiversity Conservation
Sarah M. Bisbing, Alexandra K. Urza, Brian J. Buma, David J. Cooper, Marjorie Matocq, Amy L. Angert
Summary: The study highlights the impact of landscape on genetic structure and performance of tree populations, with local climate conditions influencing survival and growth patterns. Some populations may not currently occupy their climatic optimum, but genetically diverse and phenotypically plastic populations of trees have high persistence potential.
DIVERSITY AND DISTRIBUTIONS
(2021)
Article
Biochemistry & Molecular Biology
Joshua P. Jahner, Thomas L. Parchman, Marjorie D. Matocq
Summary: Analysis of genetic data from two ecologically distinct mammals in a hybrid zone in southern California shows that hybrids are rare and consist mostly of F-1 individuals and multigenerational backcrosses. More than half of loci show elevated introgression from one genetic background to the other, although introgression is not associated with measures of divergence and loci with extreme divergence values are not near detoxification enzymes related to woodrat dietary specialization.
Article
Biochemistry & Molecular Biology
Robert Greenhalgh, Matthew L. Holding, Teri J. Orr, James B. Henderson, Thomas L. Parchman, Marjorie D. Matocq, Michael D. Shapiro, M. Denise Dearing
Summary: The genomic architecture of woodrats and their response to environmental change, especially the switch to a toxic food source, are studied using third-generation sequencing and novel analytical toolsets. A trio binning sequencing approach with a hybrid woodrat allows the simultaneous assembly of genomes representing each parental species, providing insights into the genetic mechanisms of dietary adaptation. Multiple gene duplications and expansions in key gene families involved in the metabolism of toxic compounds are found, suggesting the crucial role of these genetic changes in dietary adaptation. The success of trio binning in recovering parental genomes from species that diverged millions of years ago is also demonstrated.
MOLECULAR ECOLOGY RESOURCES
(2022)
Article
Ecology
Dylan M. Klure, Robert Greenhalgh, Thomas L. Parchman, Marjorie D. Matocq, Lanie M. Galland, Michael D. Shapiro, M. Denise Dearing
Summary: In a shrubland in California, a 3-year recapture study on Bryant's woodrat and desert woodrat revealed a high frequency of hybridization. The hybrids have comparable survival rates to the dominant parental species, indicating that ecological factors have limited influence on hybridization in this environment.
Article
Biochemistry & Molecular Biology
Elizabeth A. Hunter, Marjorie D. Matocq, Peter J. Murphy, Kevin T. Shoemaker