Publications by authors named "Amaya I"

Carotenoids are a diverse group of pigments imparting red, orange, and yellow hues to many horticultural plants, also enhancing their nutritional properties and health benefits. In strawberry, the genetic and molecular mechanisms regulating the natural variation of fruit carotenoid composition remain largely unexplored. In this study, we use a population segregating in yellow/white flesh to detect a major quantitative trait locus (QTL), qYellow Flesh-4B, located on chromosome 4B and accounting for 82% of total phenotypic variation.

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  • Over two decades, initiatives have aimed to enhance STEM undergraduate outcomes, with the inclusive Research Education Community (iREC) emerging as a scalable reform model that supports STEM faculty in implementing course-based research to improve student learning.
  • This study utilized pathway modeling to describe the HHMI Science Education Alliance (SEA) iREC, identifying how faculty engagement leads to sustainable adoption and improvement of new teaching strategies through feedback from over 100 participating faculty members.
  • The findings indicate that iREC fosters a collaborative environment where STEM faculty can share expertise and data, thereby enhancing their teaching practices and contributing to the overall evolution of undergraduate science education.
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Strawberries (Fragaria sp.) are cherished for their organoleptic properties and nutritional value. However, breeding new cultivars involves the simultaneous selection of many agronomic and fruit quality traits, including fruit firmness and extended postharvest life.

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Microgrids (MGs) based on renewable energies have emerged as a proficient strategy for tackling power quality issues in conventional distribution networks. Nonetheless, MG systems require a suitable control scheme to supply energy optimally towards the electrical grid. This paper presents an innovative framework for designing hybrid Proportional-Resonant (PR) controllers with Linear Quadratic Regulators (LQR), PR+LQR, which merge relevant properties of PR and LQR controllers.

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Flowering time (FT), which determines when fruits or seeds can be harvested, is subject to phenotypic plasticity, that is, the ability of a genotype to display different phenotypes in response to environmental variation. Here, we investigated how the environment affects the genetic architecture of FT in cultivated strawberry (Fragaria × ananassa) and modifies its quantitative trait locus (QTL) effects. To this end, we used a bi-parental segregating population grown for 2 years at widely divergent latitudes (five European countries) and combined climatic variables with genomic data (Affymetrix SNP array).

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Flicker light stimulation (FLS) is a non-pharmacological method of inducing altered states of consciousness (ASCs), producing hallucination-like phenomena as well as effects extending beyond the visual modality, including emotional effects. Research into the psychological and neural mechanisms of FLS is still in its infancy, but can be informed by research into other methods of inducing ASCs. For instance, research on classic psychedelics has reported enhancement of emotional responses to music.

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During infection, bacteriophages produce diverse gene products to overcome bacterial antiphage defenses, to outcompete other phages, and to take over cellular processes. Even in the best-studied model phages, the roles of most phage-encoded gene products are unknown, and the phage population represents a largely untapped reservoir of novel gene functions. Considering the sheer size of this population, experimental screening methods are needed to sort through the enormous collection of available sequences and identify gene products that can modulate bacterial behavior for downstream functional characterization.

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The population in the world is aging dramatically, and therefore, the economic and social effort required to maintain the quality of life is being increased. Assistive technologies are progressively expanding and present great opportunities; however, given the sensitivity of health issues and the vulnerability of older adults, some considerations need to be considered. This paper presents DigiHEALTH, a suite of digital solutions for long-term healthy and active aging.

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Flicker light stimulation (FLS) uses stroboscopic light on closed eyes to induce transient visual hallucinatory phenomena, such as the perception of geometric patterns, motion, and colours. It remains an open question where the neural correlates of these hallucinatory experiences emerge along the visual pathway. To allow future testing of suggested underlying mechanisms (e.

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  • Malaria is a significant global health issue, particularly in Venezuela, where co-infections with other viral and bacterial pathogens complicate malaria diagnosis and treatment, leading to higher mortality rates.
  • A study was conducted on 161 malaria patients to assess the prevalence of co-infections with pathogens like dengue virus and hepatitis viruses, using specific laboratory tests for diagnosis.
  • Results showed that 34% of the malaria patients had co-infections, with a higher incidence in those infected with the Plasmodium falciparum strain compared to Plasmodium vivax, highlighting the need for improved diagnostic methods in endemic areas.
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Strawberry ( × ) fruits are an excellent source of -ascorbic acid (AsA), a powerful antioxidant for plants and humans. Identifying the genetic components underlying AsA accumulation is crucial for enhancing strawberry nutritional quality. Here, we unravel the genetic architecture of AsA accumulation using an F population derived from parental lines 'Candonga' and 'Senga Sengana', adapted to distinct Southern and Northern European areas.

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The diploid woodland strawberry () represents an important model for the genus . Significant advances in the understanding of the molecular mechanisms regulating seasonal alternance of flower induction and vegetative reproduction has been made in this species. However, this research area has received little attention on the cultivated octoploid strawberry ( × ) despite its enormous agronomical and economic importance.

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Fresh berries are a popular and important component of the human diet. The demand for high-quality berries and sustainable production methods is increasing globally, challenging breeders to develop modern berry cultivars that fulfill all desired characteristics. Since 1994, research projects have characterized genetic resources, developed modern tools for high-throughput screening, and published data in publicly available repositories.

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  • - Bacteriophages hold a vast array of unique genes that are not currently understood, which could shed light on how phages interact with their bacterial hosts and lead to new techniques for controlling bacterial growth.
  • - The study discusses the creation of a gene library from the Waterfoul mycobacteriophage, closely related to those infecting important bacteria like Mycobacterium tuberculosis and Mycobacterium abscessus.
  • - Screening this gene library revealed 32 gene products from Waterfoul that can inhibit the growth of Mycobacterium smegmatis, some of which exhibit strong anti-mycobacterial properties, paving the way for further research.
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Bacteriophage EasyJones is a myovirus infecting Mycobacterium smegmatis mc155, with a genome length and gene content similar to those of phages grouped in subcluster C1. Interestingly, EasyJones contains a gene found in a subset of C1 genomes that is similar to the well-characterized immunity repressor of subcluster A1 mycobacteriophage Bxb1.

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In contrast to climacteric fruits such as tomato, the knowledge on key regulatory genes controlling the ripening of strawberry, a nonclimacteric fruit, is still limited. NAC transcription factors (TFs) mediate different developmental processes in plants. Here, we identified and characterized Ripening Inducing Factor (FaRIF), a NAC TF that is highly expressed and induced in strawberry receptacles during ripening.

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Hyperheuristics rise as powerful techniques that get good results in less computational time than exact methods like dynamic programming or branch and bound. These exact methods promise the global best solution, but with a high computational time. In this matter, hyperheuristics do not promise the global best solution, but they promise a good solution in a lot less computational time.

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Phenylpropanoids are a large class of plant secondary metabolites, which play essential roles in human health mainly associated with their antioxidant activity. Strawberry (Fragaria × ananassa) is a rich source of phytonutrients, including phenylpropanoids, which have been shown to have beneficial effects on human health. In this study, using the F.

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  • Diploid and octoploid strawberries exhibit significant color variation due to different patterns of anthocyanin accumulation, primarily controlled by the MYB10 transcription factor.
  • Mutations in MYB10 are linked to most of the color variation observed in both woodland and cultivated strawberries, with specific mutations correlating to white-fruited ecotypes losing anthocyanin production.
  • Additionally, genetic analysis revealed that variations in MYB10's regulatory elements impact anthocyanin levels in the fruit, influencing skin and flesh color in octoploid strawberries.
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A better understanding of the behavior of asphaltenes is paramount for improving processes related to heavy crude oil, such as transport. Previous research has studied its aggregation [1], as well as its average chemical structure [2]. But, of course, this expands beyond the realm of oil, as other applications are affected by asphaltenes [3].

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FaMADS9 is the strawberry (Fragaria x ananassa) gene that exhibits the highest homology to the tomato (Solanum lycopersicum) RIN gene. Transgenic lines were obtained in which FaMADS9 was silenced. The fruits of these lines did not show differences in basic parameters, such as fruit firmness or colour, but exhibited lower Brix values in three of the four independent lines.

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Throughout evolution, a number of animals including humans have lost the ability to synthesize ascorbic acid (ascorbate, vitamin C), an essential molecule in the physiology of animals and plants. In addition to its main role as an antioxidant and cofactor in redox reactions, recent reports have shown an important role of ascorbate in the activation of epigenetic mechanisms controlling cell differentiation, dysregulation of which can lead to the development of certain types of cancer. Although fruits and vegetables constitute the main source of ascorbate in the human diet, rising its content has not been a major breeding goal, despite the large inter- and intraspecific variation in ascorbate content in fruit crops.

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Improvement of nutritional and organoleptic quality of fruits is a key goal in current strawberry breeding programs. The ratio of sugars to acids is a determinant factor contributing to fruit liking, although different sugars and acids contribute in varying degrees to this complex trait. A segregating F population of 95 individuals, previously characterized for several fruit quality characters, was used to map during 2 years quantitative trait loci (QTL) for 50 primary metabolites, l-ascorbic acid (L-AA) and other related traits such as soluble solid content (SSC), titratable acidity (TA), and pH.

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When solving constraint satisfaction problems (CSPs), it is a common practice to rely on heuristics to decide which variable should be instantiated at each stage of the search. But, this ordering influences the search cost. Even so, and to the best of our knowledge, no earlier work has dealt with how first variable orderings affect the overall cost.

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