Article
Plant Sciences
Patricia Lu-Irving, Jason G. Bragg, Maurizio Rossetto, Kit King, Mitchell O'Brien, Marlien M. van der Merwe
Summary: Plant mating systems have an impact on the distribution of genetic diversity and the long-term success of populations. In this study, the relationship between genetic diversity and mating systems in two species of Hakea was investigated. The results showed contrasting patterns of genetic diversity between the two species, consistent with their differences in mating systems. The findings suggest that seed collection schemes aiming to maximize genetic diversity should consider the specific mating system of the target species.
Article
Plant Sciences
Margaux Jullien, Joelle Ronfort, Laurene Gay
Summary: Despite predominantly selfing, the natural population of M. truncatula displays variation in residual outcrossing rate, likely under a complex determinism combining environmental and genetic factors. The study found a small increase in outcrossing rate at the end of the flowering season and detected significant between genotypes variation in selfing rate, indicating a heritability of 9% for the rate of residual outcrossing.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Developmental Biology
Hussein A. Saud, Paul A. O'Neill, Yosuke Ono, Bas Verbruggen, Ronny Van Aerle, Jaebum Kim, Jae-Seong Lee, Brian C. Ring, Tetsuhiro Kudoh
Summary: This study characterized two mutants in self-fertilizing mangrove killifish, with identified mutated genes for rapid identification. The findings showcase the potential for accelerating future small-scale forward-genetic screening and mutation identification.
Article
Biochemistry & Molecular Biology
Christoph Stritt, Elena L. Gimmi, Michele Wyler, Abdelmonaim H. Bakali, Aleksandra Skalska, Robert Hasterok, Luis A. J. Mur, Nicola Pecchioni, Anne C. Roulin
Summary: Wild plant populations of Brachypodium distachyon exhibit extensive genetic subdivision, influenced by the interplay of high selfing and seed dispersal rates. The species' evolution is characterized by the independent expansion of three lineages during the Upper Pleistocene, with selfing and dispersal maintaining high genotypic diversity at regional scales.
Article
Ecology
Stefan Abrahamczyk, Maximilian Weigend, Katrin Becker, Lea Sophie Dannenberg, Judith Eberz, Nayara Atella-Hoedtke, Bastian Steudel
Summary: Many hummingbird-pollinated plant species have evolved independently from bee-pollinated ancestors in different habitats in North and South America. Hummingbird-pollinated species have higher seed set and germination rates in cross-pollinated flowers compared to self-pollinated ones. Hummingbird pollination is more resource efficient in self-incompatible populations.
ECOLOGY AND EVOLUTION
(2022)
Article
Plant Sciences
Anne Muola, Johannes F. Scheepens, Liisa Laukkanen, Aino Kalske, Pia Mutikainen, Roosa Leimu
Summary: Our study in the fragmented landscape of Finnish archipelago shows that populations of V. hirundinaria have high outcrossing rates and gene flow, indicating successful colonization of new habitats and genetic mixing among populations.
NORDIC JOURNAL OF BOTANY
(2021)
Article
Agriculture, Dairy & Animal Science
Ruth Guadalupe Castillo-Rodriguez, Obdulia Lourdes Segura-Leon, Martha Hernandez-Rodriguez, Ricardo Serna-Lagunes, Josafhat Salinas-Ruiz, Juan Salazar-Ortiz
Summary: This study characterized the genetic diversity of three populations of creole sheep managed by indigenous communities in the central region of Veracruz, Mexico. Through analysis of genomic DNA extracted from blood samples, it was found that these populations still possess genetic diversity at four loci and display non-random mating.
Article
Genetics & Heredity
Prabuddha Manjula, Minjun Kim, Sunghyun Cho, Dongwon Seo, Jun Heon Lee
Summary: This study investigated 11 microsatellite markers in the MHC-B region of chicken populations from four countries and found significant differences in MHC diversity among different countries and populations. The preserved MHC diversity in local chicken populations provides a great opportunity for future studies exploring the relationship between MHC polymorphisms and immune responses.
Article
Multidisciplinary Sciences
Vania Jimenez-Lobato, Juan Nunez-Farfan
Summary: This study investigated the genetic and phenotypic differences between two populations of the annual insect-pollinated plant Datura inoxia in Mexico. The results showed significant variations in outcrossing and selfing rates between the two populations, with Mapimi population favoring outcrossing and Canada Moreno population favoring selfing. Additionally, the study found a relationship between inbreeding depression and primary selfing rate in the Canada Moreno population.
Article
Plant Sciences
Robert M. McElderry, Rachel B. Spigler, Donna W. Vogler, Susan Kalisz
Summary: There is a widespread association between selfing rate and floral size within and among taxa, but this association is not reflected at microevolutionary scales. The divergence in mating system among populations of Collinsia verna is consistent with their previously observed selection pressures, but the divergence in floral traits is not as expected.
AMERICAN JOURNAL OF BOTANY
(2022)
Article
Ecology
Fabienne Van Rossum, Olivier Raspe, Filip Vandelook
Summary: The study found that Geranium robertianum mainly mates through autonomous selfing in wild conditions, despite signals for insect pollination. Genetic differentiation showed a western-eastern longitudinal trend, potentially influenced by long-distance seed dispersal and ecological adaptation. The presence of diploid loci and evidence of ancient polyploidization suggest multiple events of polyploidization across the species range.
ECOLOGY AND EVOLUTION
(2021)
Article
Biodiversity Conservation
Daniel Bustillo-de La Rosa, Juan Traba, Maria Calero-Riestra, Manuel B. Morales, Adrian Barrero, Javier Vinuela, Cristian Perez-Granados, Julia Gomez-Catasus, Juan J. Onate, Margarita Reverter, Israel Hervas, Jorge Hernandez Justribo, Eladio L. Garcia de la Morena, German M. Lopez-Iborra, Jesus T. Garcia
Summary: Monitoring genetic diversity in Dupont's lark revealed temporal variation in genetic parameters, with no substantial loss at the species level, but significant changes among regions. Connectivity plays a major role in maintaining genetic diversity, although evidence of genetic bottleneck and erosion in certain areas signal a rapid decline in populations, necessitating urgent conservation efforts.
Article
Plant Sciences
Subodh Adhikari, Samuel R. Revolinski, Sanford D. Eigenbrode, Ian C. Burke
Summary: The study investigated the genetic diversity and population structures of Mayweed chamomile from different invaded regions, identifying low but significant genetic variations among regions, populations, and individuals. Despite weak genetic structure, two main genetic clusters were identified, indicating potential gene flow among populations from different regions in the Pacific Northwest, USA.
Article
Biochemistry & Molecular Biology
Motbaynor Terefe, Genet Birmeta, Dejene Girma, Mulatu Geleta, Kassahun Tesfaye
Summary: This study analyzed the genetic diversity and population structure of noug accessions collected from different regions of Ethiopia using microsatellite markers. The results showed high genetic diversity among the populations, with certain regions showing higher diversity. This information can be valuable for breeding and conservation programs.
MOLECULAR BIOLOGY REPORTS
(2023)
Article
Biochemistry & Molecular Biology
Shuai-Peng Si, Chun-Jing Wang, Ji-Zhong Wan, Yu-Lin Qian, Chun-Hui Zhang
Summary: In this study, genomic DNA of P. brachytyla was sequenced and 10 useful microsatellite loci were identified. These polymorphic microsatellite markers showed high polymorphism for P. brachytyla, providing a basis for future conservation and genetic research on this rare plant species.
MOLECULAR BIOLOGY REPORTS
(2022)
Article
Ecology
Andrey Tatarenkov, Ryan L. Earley, D. Scott Taylor, William P. Davis, John C. Avise
Summary: A study on the genetic analysis of mangrove rivulus in the contact zone on San Salvador in the Bahamas revealed the presence of sexually mature hybrids in two mixed populations. The hybrids were found to be offspring of crosses between two diverged lineages, with some showing reproduction through self-fertilization for multiple generations. Mitochondrial haplotypes and allele proportions in hybrids suggested bidirectional crosses and lack of recent backcrossing to parental lineages, indicating introgression between sympatric populations.
JOURNAL OF EVOLUTIONARY BIOLOGY
(2021)
Article
Ecology
Waldir M. Berbel-Filho, Andrey Tatarenkov, Helder M. Espirito-Santo, Mateus G. Lira, Carlos Garcia de Leaniz, Sergio M. Q. Lima, Sofia Consuegra
Article
Ecology
Myrthe L. Dekker, Andres Hagmayer, Karen M. Leon-Kloosterziel, Andrew I. Furness, Bart J. A. Pollux
FRONTIERS IN ECOLOGY AND EVOLUTION
(2020)
Article
Biochemistry & Molecular Biology
Andrew I. Furness, John C. Avise, Bart J. A. Pollux, Yuridia Reynoso, David N. Reznick
Summary: Researchers studied the evolution of placentas and found that placental species have significant features in reproductive allocation and superfetation, potentially related to body size and habitat.
Article
Ecology
Sergio M. Q. Lima, Waldir M. Berbel-Filho, Anderson Vilasboa, Cristiano Lazoski, Thais de Assis Volpi, Henrique Lazzarotto, Claudia A. M. Russo, Andrey Tatarenkov, John C. Avise, Antonio M. Sole-Cava
Summary: By analyzing the genetic structure of Trichomycterus alternatus from 15 river drainages, it was found that the species is monophyletic and comprised of three main lineages. Dispersal via palaeorivers is an important process, but not enough to recover the most recent dispersive events. Integrating both palaeo-riverine configuration and localized river captures is crucial to understand the role of past geological and climatic events on the distribution of freshwater organisms.
JOURNAL OF BIOGEOGRAPHY
(2021)
Article
Fisheries
Mateus G. S. Lira, Waldir M. Berbel-Filho, Helder M. Espirito-Santo, Andrei Tatarenkov, John C. Avise, Carlos Garcia Leaniz, Sofia Consuegra, Sergio M. Q. Lima
Summary: Mangrove killifishes of the genus Kryptolebias, historically classified as rare due to their small size and cryptic nature, are found to be ubiquitously distributed across western Atlantic mangroves. The study reveals substantial genetic differences between clades, as well as further genetic structuring within clades in different regions, shedding light on the taxonomic status and distribution patterns of these self-fertilizing killifishes in the western Atlantic mangroves.
JOURNAL OF FISH BIOLOGY
(2021)
Article
Ecology
Andrew Furness
Summary: An unexpected interaction between the introduced fish species Poecilia latipinna and humans was observed in Lake Vouliagmeni, Greece, where the fish approached and grazed on the skin of bathing humans. This phenomenon is likely a product of multiple contingencies and unique ecological circumstances.
ENVIRONMENTAL BIOLOGY OF FISHES
(2021)
Article
Ecology
Andres Hagmayer, Andrew Furness, Bart J. A. Pollux
Summary: Our study found that fish species with placentation and superfetation adaptations tend to prefer deeper and faster-flowing parts of the river, while those lacking these adaptations are confined to shallow slow-flowing areas, suggesting that these reproductive features may explain ontogenetic and diurnal microhabitat preferences among sympatric live-bearing fish species.
FRESHWATER BIOLOGY
(2021)
Article
Ecology
Andrew Furness, Andres Hagmayer, Bart J. A. Pollux
Summary: Reproductive mode can impact the form of sexual selection, with a shift from lecithotrophic to matrotrophic viviparity potentially influencing a change from precopulatory to post-copulatory sexual selection. Research on five sympatric Costa Rican poeciliid species suggests that lecithotrophic species tend to have a broader distribution of male sizes compared to matrotrophic species, with large males in lecithotrophic species exhibiting unique morphological and coloration traits. Additionally, even in matrotrophic species lacking courtship and dichromatic coloration, some morphological traits exhibit significant size-specific relationships, indicating the presence of precopulatory sexual selection in subtle ways.
JOURNAL OF EVOLUTIONARY BIOLOGY
(2021)
Review
Ecology
David N. Reznick, Joseph Travis, Bart J. A. Pollux, Andrew I. Furness
Summary: Sexual conflict arises from differences in the ways males and females maximize fitness, which are influenced by investment in gametes, mate choice, and provision for offspring. Evolution of maternal provisioning in fish can lead to changes in when and how mates are chosen and is associated with the evolution of male traits linked to sexual selection. Contrary to predictions, the evolution of placentas and associated conflict does not accelerate speciation, with a more prominent role played by pre-copulatory reproductive isolation in driving speciation in this family.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2021)
Article
Genetics & Heredity
Waldir M. Berbel-Filho, Andrey Tatarenkov, George Pacheco, Helder M. V. Espirito-Santo, Mateus G. Lira, Carlos Garcia de Leaniz, John C. Avise, Sergio M. Q. Lima, Carlos M. Rodriguez-Lopez, Sofia Consuegra
Summary: Different mating systems can impact hybridization between species, with self-incompatible species potentially outcompeting self-compatible ones. A study on mangrove killifish species with different mating systems found relatively high natural hybridization rates, mainly sired by the selfing species. This research sheds light on how contrasting mating systems may affect gene flow and the evolution of hybrid zones.
Article
Biochemistry & Molecular Biology
Waldir M. Berbel-Filho, George Pacheco, Andrey Tatarenkov, Mateus G. Lira, Carlos Garcia de Leaniz, Carlos M. Rodriguez Lopez, Sergio M. Q. Lima, Sofia Consuegra
Summary: This study presents a phylogenomic hypothesis on the evolutionary relationships within the killifish genus Kryptolebias through the use of mtDNA and genome-wide nuclear sites, revealing a new lineage hidden in a case of mito-nuclear discordance, and providing evidence of multiple events of ancestral introgression in the genus.
MOLECULAR PHYLOGENETICS AND EVOLUTION
(2022)
Article
Microbiology
Felix Argueta, Andrey Tatarenkov, Luis Mota-Bravo
Summary: The fully assembled genome of Escherichia coli strain BR1220 reveals the presence of a triple tandemly arrayed IS26 composite transposon carrying a qnrB19 quinolone resistance gene in a 100-kb multidrug resistance plasmid (1.6 copies per chromosome [CPC]) and a 2.6-kb Col(pHAD28) plasmid (27.8 CPC) with a nearly identical qnrB19 gene region.
MICROBIOLOGY RESOURCE ANNOUNCEMENTS
(2022)
Article
Evolutionary Biology
Andrew Furness, Andres Hagmayer, Bart J. A. Pollux
BIOLOGICAL JOURNAL OF THE LINNEAN SOCIETY
(2020)
Article
Ecology
Andres Hagmayer, Andrew Furness, Bart J. A. Pollux