Evolutionary Insights into the Nature of Plant Domestication

Current Biology, Journal Year: 2019, Volume and Issue: 29(14), P. R705 - R714

Published: July 1, 2019

Domestication is a co-evolutionary process that occurs when wild plants are brought into cultivation by humans, leading to origin of new species and/or differentiated populations critical for human survival. Darwin used domesticated as early models evolution, highlighting their variation and the key role selection in differentiation. Over last two decades, growing synthesis plant genetics, genomics, archaeobotany has led challenges old orthodoxies advent fresh perspectives on how crop domestication diversification proceed. I discuss four insights — general protracted process, unconscious (natural) plays prominent role, interspecific hybridization may be an important mechanism range expansion, similar genes across multiple underlies parallel/convergent phenotypic evolution between taxa. Insights evolutionary can help us developing varieties (and possibly even species) deal with current future environmental sustainable manner.

Language: Английский

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5Gs for crop genetic improvement

Current Opinion in Plant Biology, Journal Year: 2020, Volume and Issue: 56, P. 190 - 196

Published: Jan. 28, 2020

Here we propose a 5G breeding approach for bringing much-needed disruptive changes to crop improvement. These 5Gs are Genome assembly, Germplasm characterization, Gene function identification, Genomic (GB), and editing (GE). In our view, it is important have genome assemblies available each deep collection of germplasm characterized at sequencing agronomic levels identification marker-trait associations superior haplotypes. Systems biology sequencing-based mapping approaches can be used identify genes involved in pathways leading the expression trait, thereby providing diagnostic markers target traits. genes, markers, haplotypes, genome-wide data may utilized GB GE methodologies combination with rapid cycle strategy.

Language: Английский

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Plant NLR diversity: the known unknowns of pan-NLRomes

The Plant Cell, Journal Year: 2021, Volume and Issue: 33(4), P. 814 - 831

Published: Jan. 1, 2021

Plants and pathogens constantly adapt to each other. As a consequence, many members of the plant immune system, especially intracellular nucleotide-binding site leucine-rich repeat receptors, also known as NOD-like receptors (NLRs), are highly diversified, both among family in same genome, between individuals species. While this diversity has long been appreciated, its true extent remained unknown. With pan-genome pan-NLRome studies becoming more comprehensive, our knowledge NLR sequence is growing rapidly, pan-NLRomes provide powerful platforms for assigning function NLRs. These efforts an important step toward goal comprehensively predicting from alone whether provides disease resistance, if so, which pathogens.

Language: Английский

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Genome-wide analyses of introgression between two sympatric Asian oak species

Nature Ecology & Evolution, Journal Year: 2022, Volume and Issue: 6(7), P. 924 - 935

Published: May 5, 2022

Language: Английский

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Two teosintes made modern maize

Science, Journal Year: 2023, Volume and Issue: 382(6674)

Published: Nov. 30, 2023

The origins of maize were the topic vigorous debate for nearly a century, but neither current genetic model nor earlier archaeological models account totality available data, and recent work has highlighted potential contribution wild relative, Zea mays ssp. mexicana . Our population analysis reveals that origin modern can be traced to an admixture between ancient in highlands Mexico some 4000 years after domestication began. We show variation is key component diversity, both at individual loci additive underlying agronomic traits. results clarify raise new questions about anthropogenic mechanisms dispersal throughout Americas.

Language: Английский

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Adaptive and maladaptive introgression in grapevine domestication

Proceedings of the National Academy of Sciences, Journal Year: 2023, Volume and Issue: 120(24)

Published: June 5, 2023

Domesticated grapevines spread to Europe around 3,000 years ago. Previous studies have revealed genomic signals of introgression from wild cultivated grapes in Europe, but the time, mode, pattern, and biological effects these events not been investigated. Here, we studied resequencing data 345 samples spanning distributional range (Vitis vinifera ssp. sylvestris) (V. vinifera) grapes. Based on machine learning-based population genetic analyses, detected evidence for a single domestication grapevine, followed by continuous gene flow between European (EU) over past ~2,000 y, especially EU wine We also inferred that soft-selective sweeps were dominant artificial selection. Gene pathways associated with synthesis aromatic compounds enriched regions both selected introgressed, suggesting an important resource improving flavor Despite potential benefits grape improvement, introgressed fragments introduced higher deleterious burden, most SNPs structural variants hidden heterozygous state. Cultivated benefited adaptive grapes, has increased load. In general, our study beneficial harmful is critical breeding grapevine take advantage resources.

Language: Английский

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Genomics of Evolutionary Novelty in Hybrids and Polyploids

Frontiers in Genetics, Journal Year: 2020, Volume and Issue: 11

Published: July 28, 2020

It has long been recognized that hybridization and polyploidy are prominent processes in plant evolution. Although classically as significant speciation adaptation, recognition of the importance interspecific gene flow dramatically increased during genomics era, concomitant with an unending flood empirical examples, or without genome doubling. Interspecific is thus increasingly thought to lead evolutionary innovation diversification, via adaptive introgression, homoploid hybrid allopolyploid speciation. Less well understood, however, suite genetic genomic mechanisms set motion by merger differentiated genomes, temporal scale over which recombinational complexity mediated might be expressed exposed natural selection. We focus on these issues here, considering types molecular saltational event between two diverged species, either doubling, how various can contribute novel phenotypes. Genetic include infusion new alleles genesis structural variation including translocations inversions, homoeologous exchanges, transposable element mobilization insertional effects, presence-absence copy number variation. Polyploidy generates massive transcriptomic regulatory alteration, presumably disrupted stoichiometries factors, small RNAs other interactions cascade from single-gene expression change up through entire networks transformed modules. highlight both combinatorial possibilities range scales such generated, selection drift.

Language: Английский

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Crop Biodiversity: An Unfinished Magnum Opus of Nature

Annual Review of Plant Biology, Journal Year: 2019, Volume and Issue: 70(1), P. 727 - 751

Published: April 29, 2019

Crop biodiversity is one of the major inventions humanity through process domestication. It also an essential resource for crop improvement to adapt agriculture ever-changing conditions like global climate change and consumer preferences. Domestication subsequent evolution under cultivation have profoundly shaped genetic architecture this biodiversity. In review, we highlight recent advances in our understanding Topics include reduction diversity during domestication counteracting factors, a discussion relationship between parallel phenotypic genotypic evolution, role plasticity genotype × environment interactions, important subsistence farmers play actively maintaining participatory breeding. Linking phenotype remains holy grail studies.

Language: Английский

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Genome-wide association studies: assessing trait characteristics in model and crop plants

Cellular and Molecular Life Sciences, Journal Year: 2021, Volume and Issue: 78(15), P. 5743 - 5754

Published: July 1, 2021

Abstract GWAS involves testing genetic variants across the genomes of many individuals a population to identify genotype–phenotype association. It was initially developed and has proven highly successful in human disease genetics. In plants genome-wide association studies (GWAS) focused on single feature polymorphism recombination linkage disequilibrium but now been embraced by plethora different disciplines with several thousand being published model crop species within last decade or so. Here we will provide comprehensive review these providing cases biotic resistance, abiotic tolerance, yield associated traits, metabolic composition. We also detail current strategies candidate gene validation as well functional study haplotypes. Furthermore, critical evaluation strategy its alternatives future perspectives that are emerging emergence pan-genomic datasets.

Language: Английский

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Rewilding crops for climate resilience: economic analysis and de novo domestication strategies

Journal of Experimental Botany, Journal Year: 2021, Volume and Issue: 72(18), P. 6123 - 6139

Published: June 10, 2021

To match predicted population growth, annual food production should be doubled by 2050. This is not achievable current agronomical and breeding practices, due to the impact of climate changes associated abiotic stresses on agricultural systems. Here, we analyze global trends crop productivity show that overall loss in from climate-driven may exceed US$170 billion year-1 represents a major threat security. We also stress tolerance had been present wild progenitors modern crops but was lost during their domestication. argue for shift our paradigm breeding, focusing resilience, call broader use relatives as tool this process. that, while molecular tools are currently place harness potential climate-resilient genes relatives, complex polygenic nature traits remains bottleneck Future research efforts focused only finding appropriate development efficient cell-based high-throughput phenotyping platforms allowing assessment planta operation key genes.

Language: Английский

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