Article
Ecology
Billie Maguire, Jewel Tomasula, Tyler Rippel, Gina M. Wimp, Matthew B. Hamilton
Summary: As anthropogenic change alters and fragments habitats, the flood tolerant low elevation marsh grass (Spartina alterniflora) is displacing the flood intolerant high elevation marsh grass (Spartina patens) in coastal salt marshes of eastern North America. The genetic analysis of Tumidagena minuta, a specialist herbivore of Spartina patens, showed that although habitat loss and isolation have increased, the genetic diversity and structure of the T. minuta population have remained relatively stable.
FRONTIERS IN ECOLOGY AND EVOLUTION
(2023)
Article
Ornithology
Leilton Willians Luna, Sofia Marques Silva, Weber Andrade de Girao e Silva, Milene Garbim Gaiotti, Regina H. Macedo, Juliana Araripe, Pericles Sena do Rego
Summary: Genetic information is often overlooked in conservation policies, but monitoring changes in genetic diversity can provide important insights for the management of endangered species. This study presents the first fine-scale spatio-temporal genetic monitoring for the Critically Endangered Araripe Manakin. The results show relatively stable genetic diversity over time, with limited signs of population structure and evidence of non-random mating. However, ongoing habitat loss and degradation pose a threat to the species, highlighting the need for habitat restoration and connectivity to ensure its survival.
ORNITHOLOGICAL APPLICATIONS
(2022)
Article
Multidisciplinary Sciences
Chiun Huang, Fang-Hua Chu, Yi-Shiang Huang, Yu-Ching Tu, Yu-Mei Hung, Yu-Hsin Tseng, Chang-En Pu, Cheng Te Hsu, Chi-Hsiang Chao, Yu-Shyang Chou, Shau-Chian Liu, Ya Ting You, Shuo-Yu Hsu, Hsiang-Chih Hsieh, Chieh-Ting Wang, Chi-Tsong Chen
Summary: Chamaecyparis formosensis is an endemic species in Taiwan that is under threat from excessive use and illegal felling. This study developed an individual identification system for C. formosensis to provide scientific evidence for court use and deter illegal felling. Biogeographical analysis revealed that C. formosensis from different geographic areas belong to the same genetic population and can be further divided into three clusters.
SCIENTIFIC REPORTS
(2022)
Article
Multidisciplinary Sciences
Miki Hirose, Kazuya Yoshida, Eiji Inoue, Masami Hasegawa
Summary: The study identified the importance of establishing spatially explicit and feasible management units for effective population control of invasive raccoons. Through the examination of mitochondrial DNA and nuclear genetic groups, at least three independent introductions, range expansion, and genetic admixture were identified in the study area. It was suggested that monitoring DNA and establishing two management units for genetic exchange were crucial for feasible management of raccoon populations.
SCIENTIFIC REPORTS
(2021)
Article
Biodiversity Conservation
Thaisa Y. K. Kubota, John E. Hallsworth, Alexandre M. da Silva, Mario L. T. Moraes, Jose Cambuim, Claudia W. Corseuil, Alexandre M. Sebbenn
Summary: This study investigates pollen flow, mating system, and spatial genetic structure in the bee-pollinated Cariniana estrellensis. The findings reveal that subpopulations are not reproductively isolated, with significant pollen flow occurring both within and between subpopulations. The study also highlights the self-compatibility of C. estrellensis, but with non-random mating patterns due to biparental inbreeding and correlated paternity. Spatial genetic structure is observed, suggesting the importance of certain distances for successful conservation efforts.
CONSERVATION GENETICS
(2023)
Article
Forestry
Claire Gely, Susan G. W. Laurance, Nigel E. Stork
Summary: Climate change is predicted to intensify droughts, leading to increased insect attack and tree mortality in temperate forests. The impact of drought on tropical rainforests remains less known. Severe drought conditions may increase wood-boring insect attack, potentially affecting long-term tree health and mortality.
FOREST ECOLOGY AND MANAGEMENT
(2021)
Article
Fisheries
Shengyan Su, Jean Damascene Nsekanabo, Brian Pelekelo Munganga, Xinjin He, Jianlin Li, Fan Yu, Meiyao Wang, Yongkai Tang
Summary: The Chinese mitten crab is an important species in China and contributes significantly to aquaculture and meeting protein demands. To ensure their sustainable exploitation, it is important to understand their genetic diversity. We studied the genetic diversity of six populations of Chinese mitten crabs from different lakes in the Yangtze River's drainage system.
Article
Agriculture, Dairy & Animal Science
Emel Ozkan Unal, Raziye Isik, Ayse Sen, Elif Geyik Kus, Mehmet Ihsan Soysal
Summary: The study assessed the genetic diversity between 17 populations of Turkish water buffalo using 20 microsatellite markers, revealing significant genetic diversity among populations. The findings indicate the suitability of these markers for genetic diversity analysis and conservation efforts in water buffalo.
Article
Genetics & Heredity
Heng-Duan Zhang, Jian Gao, Chun-Xiao Li, Zu Ma, Yuan Liu, Ge Wang, Qing Liu, Dan Xing, Xiao-Xia Guo, Teng Zhao, Yu-Ting Jiang, Yan-De Dong, Tong-Yan Zhao
Summary: This study investigated the genetic variation and population structure of Aedes albopictus populations in the Yangtze River Basin in China, revealing high genetic diversity. The rapid expansion of high-speed rail, aircraft routes, and highways has accelerated mosquito dispersal, promoting genetic diversity among populations and inhibiting differentiation.
Article
Ecology
Shuang Zhang, Guo-Rui Xu, Yu-Xin Zhang, Wen-Fu Zhang, Min Cao
Summary: Factors shaping interspecific variations in herbivory have long been a puzzle for ecologists, and several hypotheses have been proposed to explain such variations. In a tropical rainforest in Yunnan Province, China, 6732 leaves from 129 species were collected to investigate the role of canopy height, neighboring species' diversity, composition and structural heterogeneity, and leaf traits in shaping herbivory patterns. The results showed that leaf herbivory decreased with canopy height and specific leaf area (SLA), but increased with leaf size. The presence of neighboring species, however, did not affect herbivory. These findings highlight the importance of vertical structure in shaping herbivory patterns in natural communities.
Article
Behavioral Sciences
Xin Zhang, Renee C. Firman, Mingjing Song, Guoliang Li, Chaoyuan Cheng, Jing Liu, Shuli Huang, Erdenetuya Batsuren, Zhibin Zhang
Summary: This study examined the effects of population density and body mass on mating strategies and reproductive success in Brandt's voles. The results showed that individuals with more mating partners had increased reproductive success, especially in high-density environments. The findings highlight the importance of understanding individual reproductive strategies and their implications for population growth.
BEHAVIORAL ECOLOGY
(2023)
Article
Forestry
Vladut Remus Tomsa, Alexandru Lucian Curtu, Mihai Daniel Nita
Summary: The study analyzed tree shape variability in a mixed oak forest with LiDAR technology, testing for associations between tree shape and individual heterozygosity, and comparing size differences between oak trees identified as pollen donors and non-donors. The results showed that pollen donors had significantly larger crown and trunk characteristics compared to non-donor trees.
Article
Forestry
Maria A. Moreno, David Boshier, Roberto Tarazi, Evandro Tambarussi, Bruna Aguiar, Elza M. Ferraz, Paulo Y. Kageyama, Alexandre M. Sebbenn
Summary: The study revealed high genetic differentiation among Hymenaea stigonocarpa populations in the Brazilian savanna, with the IT population showing unique distribution patterns impacting genotypic richness and spatial genetic structure. Additionally, pollen dispersal and mating systems exhibited distinct features, highlighting the importance of conservation efforts in maintaining viable populations.
TREES-STRUCTURE AND FUNCTION
(2022)
Article
Fisheries
Juan C. Aguirre-Pabon, Gilberto Orozco Berdugo Jr, Juan C. Narvaez
Summary: This study examines the genetic diversity, population structure and connectivity of the lebranche (Mugil liza) species in the Colombian Caribbean. The results show low genetic diversity and high inbreeding in the lebranche population. Two distinct populations were identified, but their distribution did not appear to be related to geographic location. These findings have important implications for the management and conservation of lebranche in Colombia.
FISHERIES RESEARCH
(2022)
Article
Agriculture, Dairy & Animal Science
Eva M. Strucken, Netsanet Z. Gebrehiwot, Marimuthu Swaminathan, Sachin Joshi, Mohammad Al Kalaldeh, John P. Gibson
Summary: This study examined the genetic structure of 15 Indian indigenous breeds and found that the genetic diversity among these breeds is relatively low compared to Bos taurus breeds. The effective population size (N-e) of Indian indigenous breeds is currently larger than that of Bos taurus dairy breeds, possibly due to their more recent domestication. The low genetic diversity among Indian indigenous cattle breeds might be attributed to their larger N-e since domestication started relatively recently compared to Bos taurus dairy cattle.
GENETICS SELECTION EVOLUTION
(2021)
Article
Agronomy
Rafael Oliveira Moreira, Eduardo de Andrade Bressan, Horst Bremer Neto, Angelo Pedro Jacomino, Antonio Figueira, Francisco de Assis Alves Mourao Filho
Summary: The native Brazilian fruit crop, cambuci, has great potential as a new fruit crop. Genetic diversity analysis using microsatellite markers revealed that the genetic diversity of cambuci is mainly within populations, with low genetic diversity among populations. A core collection with high genetic diversity was selected using Darwin analysis.
GENETIC RESOURCES AND CROP EVOLUTION
(2022)
Article
Plant Sciences
Daniele Paschoal, Juliana L. Costa, Eder M. da Silva, Fabia B. da Silva, Diogo Capelin, Vitor Ometto, Juliana A. Aricetti, Gabriel G. Carvalho, Rodrigo F. Pimpinato, Ricardo F. de Oliveira, Esther Carrera, Isabel Lopez-Diaz, Monica L. Rossi, Valdemar Tornisielo, Camila Caldana, Diego M. Riano-Pachon, Igor Cesarino, Paulo J. P. L. Teixeira, Antonio Figueira
Summary: Using tomato as a model system, this study investigates the physiological and metabolic consequences of Moniliophthora perniciosa infection, suggesting that symptoms result from sink establishment by the pathogen.
JOURNAL OF EXPERIMENTAL BOTANY
(2022)
Article
Forestry
Maria A. Moreno, David Boshier, Roberto Tarazi, Evandro Tambarussi, Bruna Aguiar, Elza M. Ferraz, Paulo Y. Kageyama, Alexandre M. Sebbenn
Summary: The study revealed high genetic differentiation among Hymenaea stigonocarpa populations in the Brazilian savanna, with the IT population showing unique distribution patterns impacting genotypic richness and spatial genetic structure. Additionally, pollen dispersal and mating systems exhibited distinct features, highlighting the importance of conservation efforts in maintaining viable populations.
TREES-STRUCTURE AND FUNCTION
(2022)
Article
Multidisciplinary Sciences
Danyel Fernandes Contiliani, Joao Felipe Carlos de Oliveira Nebo, Rafael Vasconcelos Ribeiro, Larissa Mara Andrade, Rafael Favero Peixoto Junior, Carolina Gimiliani Lembke, Ricardo Silverio Machado, Daniel Nunes Silva, Mariana Belloti, Glaucia Mendes de Souza, Dilermando Perecin, Tiago Campos Pereira, Regina Celia de Matos Pires, Patricia Rezende Fontoura, Marcos G. A. Landell, Antonio Figueira, Silvana Creste
Summary: This study compared the transcriptional profiles of two sugarcane genotypes with contrasting drought tolerance in a drought-prone environment. The results revealed differentially expressed genes related to oxidoreductase activity, transcriptional regulation, amino acid metabolism, and translation, with a greater number of exclusive transcripts in the drought-tolerant genotype. The enhanced antioxidant system of the tolerant genotype protects photosystem II from oxidative damage, ensuring stable photochemical activity even after prolonged water shortage. Additionally, the tolerant genotype exhibits a more extensive set of responsive transcription factors, promoting the fine-tuning of drought-related molecular pathways. These findings provide insights into the molecular mechanisms of drought tolerance in sugarcane and have potential applications in plant breeding programs.
SCIENTIFIC REPORTS
(2022)
Article
Biochemistry & Molecular Biology
Joni E. Lima, Luis H. D. Serezino, Melissa K. Alves, Andre L. Tagliaferro, Marielle Vitti, Silvana Creste, Diego M. Riano-Pachon, Renato dos Santos, Antonio Figueira
Summary: The regulation of nitrate uptake in sugarcane roots is influenced by the physiological status of the plant and is likely determined by transcriptional and posttranscriptional mechanisms. The expression of nitrate transporter genes plays a crucial role in modulating nitrate uptake and nitrogen use efficiency in sugarcane roots.
MOLECULAR GENETICS AND GENOMICS
(2022)
Article
Plant Sciences
Juliene D. R. Moreira, Bruno L. Rosa, Bruno S. Lira, Joni E. Lima, Ludmila N. F. Correia, Wagner C. Otoni, Antonio Figueira, Luciano Freschi, Tetsu Sakamoto, Lazaro E. P. Peres, Magdalena Rossi, Agustin Zsogon
Summary: The distribution of heterobaric and homobaric leaves in tomatoes is controlled by a single-nucleotide polymorphism in a transcription factor gene. This mutation exists in wild tomatoes and has increased in frequency in domesticated tomatoes, affecting leaf growth and morphological characteristics.
Article
Plant Sciences
Karla Gasparini, Joaquim Gasparini, Rodrigo Therezan, Mateus Henrique Vicente, Tetsu Sakamoto, Antonio Figueira, Agustin Zsogon, Lazaro E. P. Peres
Summary: Research findings on the genetic changes in trichome development and density in tomato and its wild relatives provide insights for breeding insect-resistant varieties.
JOURNAL OF PLANT PHYSIOLOGY
(2023)
Article
Plant Sciences
Alessandra Koltun, Rodolfo A. A. Maniero, Marielle Vitti, Nathalia de Setta, Ricardo F. H. Giehl, Joni E. E. Lima, Antonio Figueira
Summary: This study characterized the function of ScAMT2;1, a member of the AMT transporter family, in sugarcane. It was found that ScAMT2;1 is a high-affinity ammonium transporter that contributes to ammonium uptake and root-to-shoot translocation under high NH4+ conditions.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Forestry
Rafael H. Roque, Alexandre M. Sebbenn, David H. Boshier, Afonso F. Filho, Evandro V. Tambarussi
Summary: Araucaria angustifolia, an endangered species, has the majority of its natural populations extinct. Selective logging is restricted, but political pressure for its return has emerged. This study investigated the impact of selective logging on genetic diversity, spatial genetic structure, effective population size, and dispersal of pollen and seed in A. angustifolia, concluding that selective logging is not suitable and new rules for sustainable logging and genetic studies are needed.
Article
Plant Sciences
Mateus Henrique Vicente, Kyle MacLeod, Feng Zhu, Diego D. Rafael, Antonio Figueira, Alisdair R. Fernie, Fady Mohareb, Zoltan Kevei, Andrew J. Thompson, Agustin Zsogon, Lazaro Eustaquio Pereira Peres
Summary: The study identified a genetic locus on chromosome 7 in tomato that controls both vegetative and reproductive organ size, with alleles from wild species leading to lower cell number and reduced size of leaves, flowers, and fruits in introgression lines. The findings suggest that selection for large fruit during domestication also influences leaf size by altering cell division, potentially allowing for fine-tuning of parameters important for crop adaptation.
Article
Biodiversity Conservation
Thaisa Y. K. Kubota, John E. Hallsworth, Alexandre M. da Silva, Mario L. T. Moraes, Jose Cambuim, Claudia W. Corseuil, Alexandre M. Sebbenn
Summary: This study investigates pollen flow, mating system, and spatial genetic structure in the bee-pollinated Cariniana estrellensis. The findings reveal that subpopulations are not reproductively isolated, with significant pollen flow occurring both within and between subpopulations. The study also highlights the self-compatibility of C. estrellensis, but with non-random mating patterns due to biparental inbreeding and correlated paternity. Spatial genetic structure is observed, suggesting the importance of certain distances for successful conservation efforts.
CONSERVATION GENETICS
(2023)
Article
Forestry
Fernanda B. Pereira, Alexandre M. Sebbenn, David H. Boshier, Bruno C. Rossini, Celso L. Marino, Miguel L. M. Freitas, Joao R. B. F. Rosa, Edson Vidal, Evandro V. Tambarussi
Summary: This study is the first research on a Roupala species in Brazil. The research applied validated species-specific microsatellite markers to genotype adults, juveniles, and seedlings, and analyzed important factors such as genetic diversity, inbreeding, effective population size, and mating system. The study found that the species has low frequency in the study forests but exhibits genetic diversity without significant differences related to disturbance levels. The research also revealed the species' resistance to fragmentation and preference for outcrossing.
Article
Forestry
Poliana Perrut-Lima, Alexandre Magno Sebbenn, Ana Flavia Francisconi, Doriane Picanco-Rodrigues, Charles Roland Clement
Summary: The genetic diversity, population structure, and mating system of Euterpe precatoria in three localities along the lower Solimoes River in Brazil were studied. The results showed significant genetic differentiation between localities and a high outcrossing rate, indicating limited gene flow and predominantly allogamous mating. The study also indicated the importance of maintaining genetic diversity in the management of these populations.
Article
Forestry
Mariana de M. Queiroz, Daniele A. A. Arriel, Sidney F. Caldeira, Antonio R. Higa, Stefania P. Araujo, Alexandre M. Sebbenn, Dario Grattapaglia
Summary: This study evaluates the application of DNA fingerprinting based on microsatellite markers for identity analysis and parentage testing of teak clones. The results show that this technique has high accuracy and reliability in distinguishing clones, which is important for protecting intellectual property rights.
Article
Forestry
Jorge Manuel Revilla-Chavez, Marcela Aparecida de Moraes, Mack Henry Pinchi-Ramirez, Alexandre Magno Sebbenn
Summary: Guazuma crinita is a fast-growing tree commonly used in agroforestry systems in the Peruvian Amazon. Indiscriminate logging has led to the loss of natural forests. The International Council for Research in Agroforestry initiated a domestication program to alleviate the pressure on natural populations. This study aimed to select superior genotypes based on genetic parameters and adaptability, productivity, and stability measures.