AI Article Synopsis
Article Abstract
Multi-year evaluation of the Vavilov wheat diversity panel identified new sources of adult plant resistance to stripe rust. Genome-wide association studies revealed the key genomic regions influencing resistance, including seven novel loci. Wheat stripe rust (YR) caused by Puccinia striiformis f. sp. tritici (Pst) poses a significant threat to global food security. Resistance genes commonly found in many wheat varieties have been rendered ineffective due to the rapid evolution of the pathogen. To identify novel sources of adult plant resistance (APR), 292 accessions from the N.I. Vavilov Institute of Plant Genetic Resources, Saint Petersburg, Russia, were screened for known APR genes (i.e. Yr18, Yr29, Yr46, Yr33, Yr39 and Yr59) using linked polymerase chain reaction (PCR) molecular markers. Accessions were evaluated against Pst (pathotype 134 E16 A + Yr17 + Yr27) at seedling and adult plant stages across multiple years (2014, 2015 and 2016) in Australia. Phenotypic analyses identified 132 lines that potentially carry novel sources of APR to YR. Genome-wide association studies (GWAS) identified 68 significant marker-trait associations (P < 0.001) for YR resistance, representing 47 independent quantitative trait loci (QTL) regions. Fourteen genomic regions overlapped with previously reported Yr genes, including Yr29, Yr56, Yr5, Yr43, Yr57, Yr30, Yr46, Yr47, Yr35, Yr36, Yrxy1, Yr59, Yr52 and YrYL. In total, seven QTL (positioned on chromosomes 1D, 2A, 3A, 3D, 5D, 7B and 7D) did not collocate with previously reported genes or QTL, indicating the presence of promising novel resistance factors. Overall, the Vavilov diversity panel provides a rich source of new alleles which could be used to broaden the genetic bases of YR resistance in modern wheat varieties.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9033734 | PMC |
| http://dx.doi.org/10.1007/s00122-022-04037-8 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Host plant selection and performance of ambrosia beetles in flood-stressed versus ethanol-injected trees provide implications for management strategies.
J Econ Entomol
December 2024
Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, Viale dell'Università, Legnaro (PD), Italy.
Ambrosia beetles (Curculionidae: Scolytinae and Platypodinae) are fungus-farming woodborers that can cause damage to the trees they colonize. Some of these beetles target stressed plants that emit ethanol, and management strategies have proposed using ethanol-injected trees as trap trees to monitor or divert dispersing adult females away from valuable crops. In this study, we used container-grown trees from 8 species to compare the effect of ethanol injection versus flooding on ambrosia beetle host selection and colonization success.
View Article and Find Full Text PDFThe arbuscular mycorrhizal fungus Claroideoglomus etunicatum (Glomerales: Claroideoglomeraceae) inoculated wheat plants mediated responses of Sitobion avenae (Fabricius) (Hemiptera: Aphididae) to water deficit.
J Econ Entomol
December 2024
Key Laboratory of Plant Protection Resources and Pest Management of Ministry of Education, College of Plant Protection, Northwest A&F University, Yangling, China.
Arbuscular mycorrhizal fungi may promote growth and stress resilience of plants, particularly under water-deficit conditions. However, interactions among mycorrhizal fungi, wheat plants, and aphids like the English grain aphid Sitobion avenae (Hemiptera: Aphididae) under water-deficit stress are still not well understood. Here, we examined the colonization of the fungus Claroideoglomus etunicatum (Glomerales: Claroideoglomeraceae) on wheat, and its effects on development and behavior of S.
View Article and Find Full Text PDFPerceived indicators of climate change in Tanzania: insights from the university of Dodoma students.
BMC Ecol Evol
December 2024
Department of Biology, The University of Dodoma, P. O. Box 338, Dodoma, Tanzania.
Background: Understanding local communities' knowledge and insights is essential for developing effective mitigation and adaptation strategies for climate change. The young generation often brings new perspectives on climate change, demonstrating a growing awareness of its impacts and innovative ideas for sustainable solutions. By engaging youth in climate action we foster future leadership, empowering them as active participants in shaping long-term climate resilience.
View Article and Find Full Text PDFComprehensive sex- and tissue-specific transcriptome of the destructive invasive pest Tuta absoluta adults.
Sci Data
December 2024
Institute of Plant Protection, Beijing Academy of Agriculture and Forestry Sciences, Beijing, 100097, China.
The South American tomato pinworm, Tuta absoluta (Meyrick) is a newly emerged invasive pests causing devastating loss on tomato production globally. Semiochemical-based management is a promising method for controlling this pest. However, there is little known about how T.
View Article and Find Full Text PDF[Dietary iron, zinc, selenium, and copper intake and food sources among adult residents in 10 provinces(autonomous regions) of China in 2022-2023].
Wei Sheng Yan Jiu
November 2024
NHC Key Laboratory of Public Nutrition and Health, National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China.
Objective: To understand the dietary iron, zinc, selenium, and copper intake and food sources of residents aged 18 years and above in 10 provinces(autonomous regions) of China.
Methods: Using the data of China Development and Nutrition Health Impact Cohort Survey from 2022 to 2023, 9981 residents aged 18 and above with complete three consecutive days with 24 h dietary recalls were selected as the research subjects. The intake status and food sources of dietary iron, zinc, selenium, and copper were analyzed and compared with the estimated average requirement(EAR) of iron, zinc, selenium and copper for Chinese residents.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!