Assessment of genetic diversity and population structure of<em> Fusarium</em> species from the <em>Fusarium fujikuroi</em> species complex causing Fusarium stalk rot of maize

Published: May 8, 2024

Fusarium stalk rot (FSR) caused by the species complex is an economic threat to maize cultivation all over world. We investigated population structure and genetic diversity of spp. obtained from five major maize-growing regions India. The Tef-1α locus was used for phylogenetic analysis geographically distinct isolates verticillioides, F. andiyazi, proliferatum, nygamai, acutatum causing FSR. Geographical separation among four local populations contributed 7.87% variance, whereas 92.12% variance within popula-tions, suggesting a predominant influence adaptation or stochastic events like drift populations, with geographical playing lesser but significant role in shaping diversity. Genetic differentiation statistics between showed lower gene flow haplotypes except andiyazi having high GST values. In contrast, Kxy reported, indicating elevated populations. haplotype network revealed presence eight which reflected pathogenic evolution adaptive potential results offer comprehensive framework discussing implications pathogen management evolutionary dynamics FSR Indian subcontinent.

Language: Английский

---

Assessment of Genetic Diversity and the Population Structure of Species from the Fusarium fujikuroi Species Complex Causing Fusarium Stalk Rot of Maize

Journal of Fungi, Journal Year: 2024, Volume and Issue: 10(8), P. 574 - 574

Published: Aug. 14, 2024

Fusarium stalk rot (FSR), caused by the species complex, is an economic threat to maize cultivation all over world. We investigated population structure and genetic diversity of obtained from five major maize-growing regions in India. The Tef-1α locus was used for phylogenetic analysis geographically distinct isolates verticillioides, F. andiyazi, proliferatum, nygamai, acutatum causing FSR. A tree showed monophyletic, polyphyletic, paraphyletic groupings reflecting complex evolutionary history within genus. Monophyletic depicting strong bootstrap support were shown have a single common ancestor coherence with limited divergence among sequences. Polyphyletic also presented significant differentiation verticillioides sequences diverse ecological niches. Nucleotide moderate level 0.02471 reflected variations populations that attributed factors such as mutation, drift, or varying selection pressures. Fst value 0.98205 particularly indicative high differentiation, implying most variance due differences between rather than them. 57 sequences, low three segregating sites haplotype 0.19486, suggesting founder effect, where reduced expands pool. total data estimates across 72 44 sites, 9 haplotypes 0.48513. dynamics differentiations AMOVA indicated within-population variations, substantial individual populations. results offer comprehensive framework discussing implications pathogen management FSR Indian subcontinent.

Language: Английский

---

Diversity and pathogenicity of fungal species associated with lettuce wilt and root rot in Vietnam

Journal of Plant Pathology, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 14, 2024

Language: Английский

---

WCAY object detection of fractures for X-ray images of multiple sites

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Nov. 4, 2024

The WCAY (weighted channel attention YOLO) model, which is meticulously crafted to identify fracture features across diverse X-ray image sites, presented herein. This model integrates novel core operators and an innovative mechanism enhance its efficacy. Initially, leveraging the benefits of dynamic snake convolution (DSConv), adept at capturing elongated tubular structural features, we introduce DSC-C2f module augment model's detection performance by replacing a portion C2f. Subsequently, integrate newly proposed weighted (WCA) into architecture bolster feature fusion improve various sites. Comparative experiments were conducted, evaluate performances several mechanisms. These enhancement strategies validated through experimentation on public datasets (FracAtlas GRAZPEDWRI-DX). Multiple experimental comparisons substantiated efficacy, demonstrating superior accuracy real-time capabilities. According findings, FracAtlas dataset, our exhibits notable 8.8% improvement in mean average precision (mAP) over original model. On GRAZPEDWRI-DX mAP reaches 64.4%, with 93.9% for "fracture" category alone. represents substantial algorithm compared other state-of-the-art object models. code publicly available https://github.com/cccp421/Fracture-Detection-WCAY .

Language: Английский

---

Fusarium equiseti Causes Leaf Rot in Hylotelephium erythrostictum in China

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: April 18, 2024

Abstract Colonies with similar molecular characterisation were isolated from rotten leaves of Hylotelephium erythrostictum collected the Chinese Medicine Herbal Cultural EXPO Garden Three Gorges, Chongqing, China. In this study, pathogen that caused these symptoms was identified as Fusarium equiseti using morphological observation, (ITS, RPB2 and CAMD ) a pathogenicity test. To best our knowledge, is first report F. H. . The findings present study are expected to contribute knowledge -associated diseases in China provide an essential foundation for development effective pre-harvest disease management strategies curb spread.

Language: Английский

---

Venous malformations in children: comparison between magnetic resonance imaging and histopathological findings

Pediatric Radiology, Journal Year: 2024, Volume and Issue: 54(9), P. 1497 - 1506

Published: July 4, 2024

Language: Английский

---