One of the main strengths of Arabidopsis thaliana as a model species is the impressive number of public resources available to the scientific community. Exploring species genetic diversity--and therefore adaptation--relies on collections of individuals from natural populations taken from diverse environments. Nevertheless, due to a few mislabeling events or genotype mixtures, some variants available in stock centers have been misidentified, causing inconsistencies and limiting the potential of genetic analyses. To improve the identification of natural accessions, we genotyped 1311 seed stocks from our Versailles Arabidopsis Stock Center and from other collections to determine their molecular profiles at 341 single nucleotide polymorphism markers. These profiles were used to compare genotypes at both the intra- and inter-accession levels. We confirmed previously described inconsistencies and revealed new ones, and suggest likely identities for accessions whose lineage had been lost. We also developed two new tools: a minimal fingerprint computation to quickly verify the identity of an accession, and an optimized marker set to assist in the identification of unknown or mixed accessions. These tools are available on a dedicated web interface called ANATool (https://www.versailles.inra.fr/ijpb/crb/anatool) that provides a simple and efficient means to verify or determine the identity of A. thaliana accessions in any laboratory, without the need for any specific or expensive technology.
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http://dx.doi.org/10.1111/j.1365-313X.2011.04852.x | DOI Listing |
Photochem Photobiol
December 2024
Graduate School of Informatics, Nagoya University, Nagoya, Japan.
Circadian clocks facilitate organisms' adaptation to the day-night environmental cycle. Some of the component genes of the clocks ("clock genes") respond directly to changes in ambient light, supposedly allowing the clocks to synchronize to and/or oscillate robustly in the environmental cycle. In the dicotyledonous model plant Arabidopsis thaliana, the clock genes CIRCADIAN CLOCK ASSOCIATED 1 (CCA1), LATE ELONGATED HYPOCOTYL (LHY) and PSEUDO-RESPONSE REGULATOR 9 (PRR9) show transient expression in response to the morning light.
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December 2024
Department of Agricultural Chemistry, College of Agriculture and Bioresources, National Taiwan University, Taipei, Taiwan.
Cadmium (Cd) is a toxic element and a widespread health hazard. Preventing its entry into crops is an outstanding issue. 3,4-Dihydroxy-L-phenylalanine (L-DOPA) is a non-proteinogenic amino acid that is secreted by a few legume plants and affects neighboring plants.
View Article and Find Full Text PDFPhysiol Plant
December 2024
College of Horticulture, Gansu Agricultural University, Lanzhou, China.
Valsa canker, caused by fungal pathogens in Valsa species, is a fungal disease of apple and pear growing in China and even in Asia. Malectin-like kinases play crucial roles in plant recognition of the pathogen-induced signals and subsequent activation of partially host immune responses. However, the role of MEDOS1 (MDS1), a Malectin-like kinase, in plant immunity has not yet been extensively explored.
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January 2025
College of Horticulture, Yangling Subsidiary Center Project of the National Apple Improvement Center, Northwest A&F University, Yangling, 712100 Shannxi China.
Unlabelled: Apple is a crucial economic product extensively cultivated worldwide. Its production and quality are closely related to the floral transition, which is regulated by intricate molecular and environmental factors. () is a transcription factor that is involved in regulating plant growth and development, with certain play significant roles in regulating flowering.
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Biological Control of Insects Research Laboratory, Research Park, USDA Agricultural Research Service, Columbia, Missouri, USA.
RNA interference (RNAi) is a promising technology for controlling insect pests of agriculture. This technology is mediated through the application of double-stranded RNAs (dsRNAs), which are processed within the insect cells into small interfering RNAs (siRNAs). These molecules then target and reduce the expression of the insect-specific genes that can kill or reduce the performance of the pest.
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