Article
Biology
Benjamin P. Oldroyd, Boris Yagound, Michael H. Allsopp, Michael J. Holmes, Gabrielle Buchmann, Amro Zayed, Madeleine Beekman
Summary: The study investigated the genetic recombination rates between Cape honeybee workers and queens, revealing that workers have evolved mechanisms to reduce recombination while queens do not possess such mechanisms.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2021)
Review
Biology
Benjamin P. Oldroyd, Boris Yagound
Summary: Social insects, due to haplo-diploidy and relatedness asymmetries, are prime candidates for the evolution of genomic imprinting. Different mating systems may lead to different evolutionary pressures on genes, influencing their direction of evolution. Crosses between subspecies of honeybees have shown evidence of genomic imprinting affecting genes related to worker reproduction.
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2021)
Article
Plant Sciences
Zifan Zhao, Yichun Wang, Ze Peng, Ziliang Luo, Meixia Zhao, Jianping Wang
Summary: Legumes establish a symbiotic relationship with rhizobia in root nodules to fix atmospheric nitrogen, and the NSP2 gene plays a critical role in this signaling pathway. In peanut, natural polymorphisms in the NSP2 homoeologs can cause loss of nodulation. This study investigated the non-Mendelian inheritance at the N-B locus and found that the expression of the N-b gene in peanut roots during symbiosis depends on the parent of origin and is imprinted in female gametes. However, no significant differences in DNA methylation were detected between these gametic tissues. This study provides a unique genetic basis for understanding gene expression regulation in symbiosis in polyploid legumes.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Agronomy
Przemyslaw Grodzicki, Joanna Bacia, Katarzyna Piatkowska, Bartosz Piechowicz
Summary: Among honeybee subspecies, Polish beekeepers commonly rear three of them - Apis mellifera carnica, A. m. mellifera, and A. m. caucasica. The goal of this study was to investigate the connection between their thermal behavior and body glycogen content in relation to wintering. The results showed that the glycogen content in worker bodies differed between autumn bees preparing for wintering and summer bees, except for the Caucasian honeybee. Moreover, the choice of ambient temperature by a certain subspecies was not influenced by the season or geographical race.
Article
Biology
Carol A. Edwards, William M. D. Watkinson, Stephanie B. Telerman, Lisa C. Hulsmann, Russell S. Hamilton, Anne C. Ferguson-Smith, Deborah Bourc'his
Summary: In mice and humans, imprinting genes play important roles in development, behavior, and post-natal adaptations. Failure to properly imprint genes in humans is associated with various disorders and diseases. Researchers have used RNA-seq technologies and hybrid mouse strains to identify novel imprinted genes, leading to an increase in reported genes with parental origin-specific expression bias. However, validation experiments show that many of these genes are not genuine imprinted genes and that the mouse strain has a greater influence on expression biases than parental origin.
Article
Genetics & Heredity
Gianluigi Paolillo, Maria Grazia De Iorio, Joel F. Soares Filipe, Federica Riva, Alessandra Stella, Gustavo Gandini, Giulio Pagnacco, Barbara Lazzari, Giulietta Minozzi
Summary: This study investigates csd variability in the genomic sequence of the hypervariable region (HVR) of the csd gene in honeybee subspecies sampled in Italy. High csd allelic diversity is found in these subspecies, which is crucial for colony survival.
Article
Entomology
Jerzy Paleolog, Karolina Kuszewska, Michal Woyciechowski, Aneta Strachecka
Summary: Queens and sterile workers in honeybees arise from genetically identical eggs but show differences in lifespan, DNA methylation, and functions. Rebels, workers with increased reproductive potential, show longer lifespan, lower global DNA methylation, and better infection tolerance compared to normal workers, expanding the potential of honeybees as a model for various biological studies. The presence of long-living rebel-workers with high reproductive potential makes honeybees particularly useful for research on senescence, nosemosis, eusocial evolution, and epigenetics.
Article
Genetics & Heredity
Norbert Reinsch, Manfred Mayer, Inga Blunk
Summary: Genomic imprinting allows alleles to influence phenotype in a parent-specific manner. Pedigree-based analyses have attempted to determine the genetic variance attributable to imprinted loci. Utilizing a simplified model with a generalized gametic relationship matrix can increase flexibility and reduce complexity in analyzing parent-of-origin effects.
G3-GENES GENOMES GENETICS
(2021)
Article
Chemistry, Applied
Elisabetta Schievano, Amanda Dettori, Lucia Piana, Marco Tessari
Summary: The compound DAGE in honey is related to its botanical origin and can be used as an indicator of honey authenticity. There is a linear correlation between DAGE content and specific enzymatic activities in honey.
Article
Medicine, General & Internal
Yanni Zeng, Carmen Amador, Chenhao Gao, Rosie M. Walker, Stewart W. Morris, Archie Campbell, Azra Frkatovic, Rebecca A. Madden, Mark J. Adams, Shuai He, Andrew D. Bretherick, Caroline Hayward, David J. Porteous, James F. Wilson, Kathryn L. Evans, Andrew M. McIntosh, Pau Navarro, Chris S. Haley
Summary: This study identified a set of vulnerable/modifiable parent-of-origin effects (POE)-regulated CpGs, and found several factors that significantly modified the POE on these CpGs. Additionally, plasma proteins and health-related phenotypes associated with the methylation level of one of the identified CpGs were also identified.
Article
Food Science & Technology
Sergio Rojo, Olga Escuredo, Maria Shantal Rodriguez-Flores, Maria Carmen Seijo
Summary: This study analyzed the botanical characteristics of 31 bee pollen samples from Galicia, Spain and found that the plant origin has an influence on the total phenol and flavonoid contents and antioxidant activity of bee pollen. Samples with higher presence of Castanea, Erica, Lythrum, and Campanula types showed higher levels of phenols, flavonoids, and antioxidant activities. On the other hand, Plantago and Taraxacum officinale types had lower content of these compounds and radical scavenging activity. Cluster analysis classified the bee pollen samples into three groups with significant differences in pollen types and nutritional properties. These findings highlight the botanical diversity and potential beneficial properties of bee pollen.
Review
Entomology
Antonio Salatino, Maria Luiza Faria Salatino, Giuseppina Negri
Summary: Propolis, a bee product, has various biological activities and is derived from plant buds or exudates. The types of Brazilian propolis are related to geographical regions and biomes. However, the diversity of plant sources of honey bee propolis in Brazil is expected to remain relatively low due to certain constraints honey bees face in collecting plant exudates.
Article
Agriculture, Multidisciplinary
Morteza Mokhtari, Arsalan Barazandeh, Zahra Roudbari, Farhad Ghafouri-Kesbi, Mahmoud Amiri Roudbar
Summary: Maternal imprinting effects significantly impact birth weight, weaning weight, six-month weight, and average daily gain from birth to weaning in Kermani sheep, while not affecting average daily gain from weaning to six months of age and other reproductive traits.
JOURNAL OF AGRICULTURAL SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Alan Giovanini de Oliveira Sartori, Aline Silva Mello Cesar, Francielli Cristiane Gruchowski Woitowicz, Ana Sofia Martelli Chaib Saliba, Masaharu Ikegaki, Pedro Luiz Rosalen, Luiz Lehmann Coutinho, Severino Matias de Alencar
Summary: This study used DNA barcoding and chemical analysis to investigate the botanical origins of propolis from southern Brazil. The results showed that the DNA in propolis samples mainly came from non-native or native plant species, while the pollen came from various plants. This study revealed information about the provenance of propolis.
Article
Biochemistry & Molecular Biology
Wenqi Cao, Kory C. Douglas, Paul B. Samollow, John L. VandeBerg, Xu Wang, Andrew G. Clark
Summary: Genomic imprinting is a phenomenon that plays important roles in many biological processes, and is only observed in therian mammals. A study investigated the imprinting pattern in marsupials using unbiased RNA-seq studies, discovering and validating 13 imprinted genes, including nine novel imprinted genes. Differential methylation and clustering were observed at marsupial-specific imprinted genes, revealing common mechanisms in the epigenetic regulation of marsupial imprinting.
MOLECULAR BIOLOGY AND EVOLUTION
(2023)
Article
Computer Science, Artificial Intelligence
Jules Smith-Ferguson, Terence C. Burnham, Madeleine Beekman
Summary: The ability to learn from past experiences and adjust behavior according to risk levels has been demonstrated in experiments with the acellular slime mould Physarum polycephalum. Results showed that individuals consistently made the same foraging decision over time, demonstrating non-associative learning capabilities in slime molds.
Article
Entomology
Patsavee Utaipanon, Michael J. Holmes, Gabriele Buchmann, Benjamin P. Oldroyd
Summary: This study analyzed male honey bees trapped at two independent Drone Congregation Areas (DCAs) every month over 2 and 2.5 years using the COLONY program, exploring the accuracy of grouping male bees based on genetic markers. The results showed that multiple sampling can provide more robust estimates of family groupings, which can be used with confidence in situations where high accuracy is required.
Article
Ecology
Amanda M. Norton, Emily J. Remnant, Jolanda Tom, Gabriele Buchmann, Tjeerd Blacquiere, Madeleine Beekman
Summary: Research shows that DWV genotypes A and B have different responses to mite numbers within honeybee colonies. DWV-A accumulation in honeybees is positively correlated with mite numbers, while DWV-B can persist with high loads in colonies even when mite numbers are low.
JOURNAL OF ANIMAL ECOLOGY
(2021)
Editorial Material
Biology
Alyson Ashe, Vincent Colot, Benjamin P. Oldroyd
Summary: Epigenetics is the study of changes in gene activity that are transmitted through cell divisions but not by changes in DNA sequence. Despite the typical erasure of epigenetic states every generation, some are heritable and subject to natural selection. Epigenetic variation enhances phenotypic plasticity, modulates the effect of natural selection on genetic variation, and can contribute to hybrid dysfunction and speciation.
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2021)
Review
Biology
Benjamin P. Oldroyd, Boris Yagound
Summary: Social insects, due to haplo-diploidy and relatedness asymmetries, are prime candidates for the evolution of genomic imprinting. Different mating systems may lead to different evolutionary pressures on genes, influencing their direction of evolution. Crosses between subspecies of honeybees have shown evidence of genomic imprinting affecting genes related to worker reproduction.
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2021)
Article
Biochemistry & Molecular Biology
Carlos A. M. Cardoso-Junior, Boris Yagound, Isobel Ronai, Emily J. Remnant, Klaus Hartfelder, Benjamin P. Oldroyd
Summary: The study found that DNA methylation is not a major factor in driving differential gene expression between tissues or behavioral types, while the presence of a queen affects the expression of all four DNA methyltransferase genes.
Letter
Multidisciplinary Sciences
Boris Yagound, Emily J. Remnant, Gabriele Buchmann, Benjamin P. Oldroyd
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Biology
Benjamin P. Oldroyd, Boris Yagound, Michael H. Allsopp, Michael J. Holmes, Gabrielle Buchmann, Amro Zayed, Madeleine Beekman
Summary: The study investigated the genetic recombination rates between Cape honeybee workers and queens, revealing that workers have evolved mechanisms to reduce recombination while queens do not possess such mechanisms.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2021)
Article
Entomology
F. G. B. Bueno, R. Hajjar, T. Colin, G. Buchmann, T. Latty, R. Gloag
Summary: Improving our understanding of virgin queen behavior and mating biology in stingless bees is crucial for artificial selection programs. This study focused on the Australian stingless bee Tetragonulacarbonaria and described the behavior of queens from eclosion to egg-laying, as well as assessed the possibility of rearing and mating young queens under constrained conditions. The study found that controlled matings were possible, but successful sperm transfer may require active acceptance from the queens.
Article
Plant Sciences
Gesa Helmsorig, Agatha Walla, Thea Ruetjes, Gabriele Buchmann, Rebekka Schueller, Goetz Hensel, Maria von Korff
Summary: The eam7 locus in barley controls photoperiodic flowering by modifying the diurnal expression pattern of the major photoperiod response gene Ppd-H1.