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| http://dx.doi.org/10.1105/tpc.19.00401 | DOI Listing |
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De novo genome assembly of white clover (Trifolium repens L.) reveals the role of copy number variation in rapid environmental adaptation.
BMC Biol
August 2024
Department of Biology, Washington University in St. Louis, St. Louis, MO, 63130, USA.
Background: White clover (Trifolium repens) is a globally important perennial forage legume. This species also serves as an eco-evolutionary model system for studying within-species chemical defense variation; it features a well-studied polymorphism for cyanogenesis (HCN release following tissue damage), with higher frequencies of cyanogenic plants favored in warmer locations worldwide. Using a newly generated haplotype-resolved genome and two other long-read assemblies, we tested the hypothesis that copy number variants (CNVs) at cyanogenesis genes play a role in the ability of white clover to rapidly adapt to local environments.
View Article and Find Full Text PDFComprehensive Identification of the β-Amylase (BAM) Gene Family in Response to Cold Stress in White Clover.
Plants (Basel)
January 2024
Key Laboratory of Molecular Cytogenetics and Genetic Breeding of Heilongjiang Province, College of Life Science and Technology, Harbin Normal University, Harbin 150025, China.
White clover ( L.) is an allopolyploid plant and an excellent perennial legume forage. However, white clover is subjected to various stresses during its growth, with cold stress being one of the major limiting factors affecting its growth and development.
View Article and Find Full Text PDFInvestigation of NLR Genes Reveals Divergent Evolution on NLRome in Diploid and Polyploid Species in Genus .
Genes (Basel)
April 2023
Department of Zoology, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia.
Crop wild relatives contain a greater variety of phenotypic and genotypic diversity compared to their domesticated counterparts. crop species have limited genetic diversity to cope with biotic and abiotic stresses due to artificial selection for consumer preferences. Here, we investigated the distribution and evolution of nucleotide-binding site leucine-rich repeat receptor (NLR) genes in the genus of with the objective to identify reference NLR genes.
View Article and Find Full Text PDFInvestigating the Origin and Evolution of Polyploid L. Karyotype by Comparative Cytogenomic Methods.
Plants (Basel)
January 2023
Department of Experimental Biology, Faculty of Sciences, Masaryk University, 611 37 Brno, Czech Republic.
L. is a wild polyploid relative of the agriculturally important red clover that possesses traits promising for breeding purposes. To date, also remains the only clover species with which agriculturally important red clover has successfully been hybridized.
View Article and Find Full Text PDFDual-species origin of an adaptive chemical defense polymorphism.
New Phytol
November 2021
Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, School of Life Sciences, Fudan University, Shanghai, 200438, China.
Allopolyploid speciation and chemical defense diversification are two of the most characteristic features of plant evolution; although the former has likely shaped the latter, this has rarely been documented. Here we document allopolyploidy-mediated chemical defense evolution in the origin of cyanogenesis (HCN release upon tissue damage) in white clover (Trifolium repens). We combined linkage mapping of the loci that control cyanogenesis (Ac, controlling production of cyanogenic glucosides; and Li, controlling production of their hydrolyzing enzyme linamarase) with genome sequence comparisons between white clover, a recently evolved allotetraploid, and its diploid progenitors (Trifolium pallescens, Trifolium occidentale).
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