Article
Entomology
S. Andzeiewski, D. C. Oliveira, D. Bernardi, M. Botton
Summary: This study evaluated different grape varieties and rootstocks for resistance to the grape phylloxera. The results showed that Magnolia variety and selections 548-15 and 1111-21 had reduced infestation and nymph survival, suggesting their potential use as new resistant rootstocks or sources of insect resistance.
ENVIRONMENTAL ENTOMOLOGY
(2022)
Article
Entomology
Wei Ji, Gary Gao, Jiufeng Wei
Summary: Grape phylloxera is a small, invasive, sap-sucking pest that is widely distributed in most viticulture regions around the world. The study used MaxEnt software to simulate the potential distribution ranges of the leaf-feeding population under current and future environmental conditions. The highly suitable ranges of Daktulosphaira vitifoliae focus on Europe, East and North China, Japan, the Eastern USA, Uruguay, and the Southeast of South America under current climatic conditions, with an obvious increase expected under future climate conditions.
Article
Entomology
S. Andzeiewski, D. C. Oliveira, D. Bernardi, M. Botton
Summary: This study evaluated the biology and fertility of the grapevine phylloxera on different grape cultivars, and found that the 'Cabernet Sauvignon' roots were the most suitable for the development of the insect. Additionally, overwintering eggs were found on the trunk of a certain rootstock, possibly promoting the survival and dispersal of the phylloxera.
ENVIRONMENTAL ENTOMOLOGY
(2022)
Article
Agriculture, Dairy & Animal Science
Zhongwen Hu, Fangyuan Yang, Deping Zhang, Shimeng Zhang, Xiaofei Yu, Maofa Yang
Summary: In this study, a population genetic analysis of 24 populations of Spodoptera litura in Southern China was conducted using microsatellite markers, providing information on genetic diversity and genetic structure. The results will contribute to pest control management strategies for S. litura in Southern China.
Article
Plant Sciences
K. N. Mallikarjuna, Bhoopal Singh Tomar, Manisha Mangal, Naveen Singh, Deepak Singh, Sachin Kumar, Avinash Tomer, Balraj Singh, Gograj Singh Jat
Summary: This study conducted a diversity analysis of 96 bitter gourd genotypes, revealing a high level of agro-morphological and genetic diversity. Cluster analysis and population structure analysis grouped the genotypes into different clusters and populations. Trait-specific genotypes with early maturity and high-yielding ability were identified based on quantitative trait analysis. These findings contribute to the development of improved cultivars and hybrids of bitter gourd.
Article
Horticulture
Miki Kawano, Masaki Yahata, Tokurou Shimizu, Chitose Honsho, Tomonari Hirano, Hisato Kunitake
Summary: Genetic analysis was carried out on five haploid plants of 'Banpeiyu' pummelo using SSR markers to confirm their gynogenetic origin. Results confirmed their origin and revealed distorted segregation ratios in certain SSR markers during self-pollination and reciprocal crosses experiments. This study provides valuable insights into the genetic characteristics of haploid and doubled haploid plants in fruit crops.
SCIENTIA HORTICULTURAE
(2021)
Article
Multidisciplinary Sciences
Wubshet Mamo, Muluken Enyew, Tilahun Mekonnen, Kassahun Tesfaye, Tileye Feyissa
Summary: In the tropical and semi-arid regions of Africa, sorghum is an important crop for food security. Genetic variability was studied in 100 genotypes of sorghum using microsatellite loci. The study found high genetic diversity among the sorghum populations, with the Amhara and Oromia regions showing the highest genetic variation.
Article
Biology
Susana Freitas, Darren J. Parker, Marjorie Labedan, Zoe Dumas, Tanja Schwander
Summary: In this study, evidence for cryptic sex was found in two populations of Timema stick insects, which could help explain the success of parthenogenesis in this genus and raises questions about the persistence of old parthenogens in nature.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2023)
Article
Fisheries
Kevin A. Feldheim, Jean Dubach, Lise Watson
Summary: This study reports a second case of parthenogenesis in a zebra shark female that was housed with conspecific mature males, questioning the conditions under which elasmobranch females undergo parthenogenesis.
JOURNAL OF FISH BIOLOGY
(2023)
Article
Ecology
Felix Gugerli, Sabine Brodbeck, Bertalan Lendvay, Benjamin Dauphin, Francesca Bagnoli, Willem O. van Der Knaap, Willy Tinner, Maria Hohn, Giovanni G. Vendramin, Cesar Morales-Molino, Christoph Schworer
Summary: The study aimed to understand the historical climate shifts and their impact on Pinus cembra. The research combined genetic structure and palaeoecological findings to identify putative refugia and re-colonisation routes. The results suggest that P. cembra survived the Last Glacial Maximum in southern regions and expanded into its current range during the Late Glacial.
JOURNAL OF BIOGEOGRAPHY
(2023)
Article
Food Science & Technology
C. W. Clarke, K. S. Powell, S. Norng, B. M. Carmody, M. Walpole, J. P. Cunningham
Summary: This study evaluated the survival and development of the G38 phylloxera strain on different rootstocks and Vitis vinifera L. It was found that G38 performed better on the 101-14, 3309 Courderc, and Schwarzmann rootstocks, possibly due to their parentage. These findings are significant for phylloxera risk assessment and rootstock selection.
AUSTRALIAN JOURNAL OF GRAPE AND WINE RESEARCH
(2023)
Article
Fisheries
Haitao Ma, Dongmei Yu, Jun Li, Yanping Qin, Yuehuan Zhang, Ziniu Yu
Summary: In this study, a consensus genetic map of Hong Kong oyster was constructed using microsatellite markers. The map will be important for future marker assisted selection and gene mapping. Tri-nucleotide microsatellite markers showed greater potential for these applications compared to di-nucleotide markers.
Article
Genetics & Heredity
Angelika Podbielska, Anna Radko
Summary: An analysis of the genetic structure of racing pigeons kept in Poland was conducted, and it was found that racing pigeons are genetically mixed, regardless of their place of origin. The genetic diversity was estimated at a relatively satisfactory level, and no alarmingly high inbreeding coefficient was observed. It was also found that the panel recommended by ISAG can be successfully used in Poland for individual identification and parentage testing.
Article
Biochemistry & Molecular Biology
Tomonari Nozaki, Kenji Suetsugu, Kai Sato, Ryuta Sato, Toshihito Takagi, Shoichi Funaki, Katsura Ito, Kazuki Kurita, Yuji Isagi, Shingo Kaneko
Summary: In this study, microsatellite markers were developed to assess genetic variation among populations of the Japanese stick insect, Phraortes elongatus. Results indicate that all 13 loci were polymorphic in the bisexual population, while none were polymorphic in the unisexual population, suggesting automixis with terminal fusion or gamete duplication as the mode of parthenogenesis. These markers will aid in further analysis of genetic diversity and gene flow between bisexual and parthenogenetic lineages of P. elongatus.
GENES & GENETIC SYSTEMS
(2021)
Article
Zoology
Nikolay A. Shchipanov, Artem Artamonov, Sergey Titov, Svetlana Pavlova
Summary: Spatial genetic structure in local populations of the common shrew in Moscow was investigated using microsatellite genetic markers. The study revealed a significant positive genetic structure at small distances (<500m), with residents showing a more prominent structure compared to nonresidents. Genetic differences between populations were significant and not associated with geographic distance, suggesting a dynamic pattern of genetic structure involving periodic appearance of related local groups and renewal of allelic profiles from a common pool.
INTEGRATIVE ZOOLOGY
(2023)
Article
Plant Sciences
Gaston Quero, Victoria Bonnecarrere, Sebastian Simondi, Jorge Santos, Sebastian Fernandez, Lucia Gutierrez, Silvia Garaycochea, Omar Borsani
Summary: Photosynthesis efficiency is influenced by light intensity and quality, requiring leaves to adapt to changing environments. Analysis of quantum yield parameters helps understand energy management, with genotypic variability offering opportunities for identifying genomic regions associated with photosynthesis.
PHOTOSYNTHESIS RESEARCH
(2021)
Article
Agronomy
Pablo Gonzalez-Barrios, Madhav Bhatta, Madalene Halley, Pablo Sandro, Lucia Gutierrez
Summary: The study showed that using a speed breeding system can significantly reduce the time required for inbreeding in plants, particularly in oats where early seed harvesting with acceptable germination levels is achievable, which is crucial for breeding systems utilizing single-seed descent.
Article
Agronomy
Jeffrey L. Neyhart, Lucia Gutierrez, Kevin P. Smith
Summary: The goal of genomewide selection in plant breeding is to predict the merit of unobserved individuals in future breeding generations. It is found that using data from more, but increasingly dissimilar environments can increase prediction accuracy, although with diminishing returns. Clusters of environments based on phenotypic correlations typically improve prediction accuracy within a generation but not between generations.
Article
Genetics & Heredity
Malachy T. Campbell, Haixiao Hu, Trevor H. Yeats, Melanie Caffe-Treml, Lucia Gutierrez, Kevin P. Smith, Mark E. Sorrells, Michael A. Gore, Jean-Luc Jannink
Summary: This study characterized natural variation in the oat seed metabolome and identified latent factors associated with lipid metabolism. Through whole-genome regression and association mapping, the study revealed a complex genetic architecture for factors generating covariance for many metabolites. The associations were used to improve predictions for seed quality traits and provide genomic resources for breeders to enhance selection for health-promoting traits.
Review
Plant Sciences
Madhav Bhatta, Pablo Sandro, Millicent R. Smith, Oscar Delaney, Kai P. Voss-Fels, Lucia Gutierrez, Lee T. Hickey
Summary: Speed breeding manipulates the growing environment to accelerate generation advance in plant breeding programs. It is compatible with various crops and cutting-edge tools like genomic selection, providing benefits for capacity building and accelerating the development of productive and resilient crops.
CURRENT OPINION IN PLANT BIOLOGY
(2021)
Article
Genetics & Heredity
Malachy T. Campbell, Haixiao Hu, Trevor H. Yeats, Lauren J. Brzozowski, Melanie Caffe-Treml, Lucia Gutierrez, Kevin P. Smith, Mark E. Sorrells, Michael A. Gore, Jean-Luc Jannink
Summary: The study evaluated the use of TGRMs to accommodate information on intermediate molecular phenotypes and predict total lipid content in oat seed. The MK-TGRM-BLUP approach significantly outperformed MT-gBLUP, highlighting the utility of TGRMs to accommodate information on endophenotypes and improve genomic prediction for a conventional agronomic trait.
FRONTIERS IN GENETICS
(2021)
Article
Agronomy
Chris Massman, Brigid Meints, Javier Hernandez, Karl Kunze, Patrick M. Hayes, Mark E. Sorrells, Kevin P. Smith, Julie C. Dawson, Lucia Gutierrez
Summary: This study aimed to evaluate a set of spring naked barley genotypes for agronomic traits in the northern United States under organic conditions and estimate the degree of genotype x environment interaction (GEI). The results showed that traits such as test weight, plant height, heading date, and threshability were mainly influenced by genotypic effects, while grain yield variance was primarily attributed to GEI. Selection for grain yield should consider the patterns of genotype x environment interaction, while traits like heading date, plant height, test weight, and threshability can be selected across different environments.
Article
Agronomy
Jeffrey L. Neyhart, Lucia Gutierrez, Kevin P. Smith
Summary: This study utilized barley breeding nurseries to optimize the selection of test locations based on multitrait data, leading to a significant reduction in the number of locations and phenotyping costs. The approach allowed for the selection of locations to match different sets of traits, increasing resource efficiency for regional evaluation trials.
Article
Agronomy
Andres Locatelli, Lucia Gutierrez, Valentin D. Picasso Risso
Summary: The objective of this research was to determine the length of the cold period required for vernalization in Kernza intermediate wheatgrass. The results showed that the percentage of flowering plants increased as the length of the cold incubation period increased, but no changes were observed in yield components after 7 weeks of cold incubation. There were no differences among populations for most traits and there was large within-population phenotypic diversity. Further research is needed to confirm the feasibility of breeding Kernza with lower vernalization requirements.
Article
Agronomy
Haixiao Hu, Malachy T. Campbell, Trevor H. Yeats, Xuying Zheng, Daniel E. Runcie, Giovanny Covarrubias-Pazaran, Corey Broeckling, Linxing Yao, Melanie Caffe-Treml, Luci'a Gutierrez, Kevin P. Smith, James Tanaka, Owen A. Hoekenga, Mark E. Sorrells, Michael A. Gore, Jean-Luc Jannink
Summary: The integration of multi-omics data has been shown to improve the prediction accuracies of oat agronomic and seed nutritional traits. Multi-omics prediction outperformed genomic prediction in single-environment trials, and multi-trait models with omics data showed superior performance in multi-environment trials. Additionally, a two-kernel linear model utilizing omics data was proposed to improve genomic prediction accuracy for various traits with prior knowledge of genetic architecture.
THEORETICAL AND APPLIED GENETICS
(2021)
Article
Agronomy
Andres Locatelli, Mahdav Bhatta, Lucia Gutierrez, Nicolas Mastandrea, Luis Viega, Ariel Julio Castro
Summary: This study aimed to identify the genomic regions associated with phenology in barley germplasm representative of breeding and production in the Southern Cone of South America. By conducting multiple field experiments, QTL were detected for multiple phenology traits in multiple environments. These findings provide insights into phenology in barley in temperate regions and can guide future research.
Article
Agronomy
Pablo Sandro, Lisa Kissing Kucek, Mark E. Sorrells, Julie C. Dawson, Lucia Gutierrez
Summary: This study aimed to develop a participatory hard red winter wheat breeding program in the US Upper Midwest, focusing on evaluating and selecting stable varieties suitable for organic systems, with input from farmers, millers, and bakers throughout the breeding process.
THEORETICAL AND APPLIED GENETICS
(2022)
Article
Plant Sciences
Lauren J. Brzozowski, Malachy T. Campbell, Haixiao Hu, Melanie Caffe, Lucia Gutierrez, Kevin P. Smith, Mark E. Sorrells, Michael A. Gore, Jean-Luc Jannink
Summary: In this study, we tested the applicability of genomic prediction methods based on biochemical pathways for oat seed metabolites. The results showed that metabolite kernels developed from the discovery panel significantly improved the prediction accuracy of the same metabolites in the validation panel. However, this method did not improve the prediction accuracy for GC-MS metabolites.
Article
Agronomy
Chris Massman, Brigid Meints, Javier Hernandez, Karl Kunze, Kevin P. Smith, Mark E. Sorrells, Patrick M. Hayes, Lucia Gutierrez
Summary: This study aimed to identify quantitative trait loci associated with threshability and evaluate their utility in genomic prediction models. Two loci on chromosomes 2H and 3H were found to be associated with threshability, but their impact on marker-assisted selection may be limited. The incorporation of these loci as covariates in the model did not improve predictive ability, while a multi-trait model including grain test weight showed improved predictive ability. Overall, genomic selection has a high predictive ability for threshability in naked barley.
Article
Agronomy
Ines Berro, Jose Varela, Lucia Gutierrez
Summary: The research proposed an image-based strategy and methodology to evaluate oat panicles, obtaining panicle traits through image analysis using MATLAB. The heritability of all panicle traits was high between 0.76 and 0.93, and significant genotypic differences for panicle architecture traits could be detected with a high power of 0.80 using six panicles per replication.
