Inference of Polyploid Origin and Inheritance Mode from Population Genomic Data

Methods in molecular biology, Journal Year: 2023, Volume and Issue: unknown, P. 279 - 295

Published: Jan. 1, 2023

Language: Английский

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Separating phases of allopolyploid evolution with resynthesized and natural Capsella bursa-pastoris

eLife, Journal Year: 2024, Volume and Issue: 12

Published: Jan. 8, 2024

Allopolyploidization is a frequent evolutionary transition in plants that combines whole-genome duplication (WGD) and interspecific hybridization. The genome of an allopolyploid species results from initial interactions between parental genomes long-term evolution. Distinguishing the contributions these two phases essential to understanding trajectory species. Here, we compared phenotypic transcriptomic changes natural resynthesized Capsella allotetraploids with their diploid We focused on traits associated selfing syndrome transcription-level phenomena such as expression-level dominance (ELD), transgressive expression (TRE), homoeolog bias (HEB). found syndrome, high pollen, seed quality likely resulted Similarly, TRE most down-regulated ELD were only allopolyploids. Natural also had more toward self-fertilizing than allotetraploids, mirroring establishment syndrome. However, short-term mattered, 40% cases already observed allotetraploids. Resynthesized showed striking variation HEB among chromosomes individuals. Homoeologous synapsis was its primary source may still be genetic In conclusion, both short- mechanisms contributed gene largely reshaped during evolution leading further morphological changes.

Language: Английский

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Experimental and Field Data Support Range Expansion in an Allopolyploid Arabidopsis Owing to Parental Legacy of Heavy Metal Hyperaccumulation

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

Published: Sept. 30, 2020

Empirical evidence is limited on whether allopolyploid species combine or merge parental adaptations to broaden habitats. The

Language: Английский

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Transition to self-compatibility associated with dominantS-allele in a diploid Siberian progenitor of allotetraploidArabidopsis kamchaticarevealed byArabidopsis lyratagenomes

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2022, Volume and Issue: unknown

Published: June 27, 2022

Abstract A transition to selfing can be beneficial when mating partners are scarce, for example, due ploidy changes or at species range edges. Here we explain how self-compatibility evolved in diploid Siberian Arabidopsis lyrata, and it contributed the establishment of allotetraploid A. kamchatica . First, provide chromosome-level genome assemblies two self-fertilizing lyrata accessions, one from North America Siberia, including a fully assembled S-locus latter. We then propose sequence events leading loss self-incompatibility date this independent ∼90 Kya, infer evolutionary relationships between American showing an Siberia. Finally, evidence that lineage formation latter is mediated by loss-of-function mutation dominant S -allele inherited

Language: Английский

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Physiology and Molecular Biology of Trace Element Hyperaccumulation

Mineral resource reviews, Journal Year: 2020, Volume and Issue: unknown, P. 155 - 181

Published: Dec. 7, 2020

Language: Английский

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