Interspecific transfer of genetic information through polyploid bridges DOI Creative Commons
Felipe Kauai, Quinten Bafort, Frederik Mortier

и другие.

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2023, Номер unknown

Опубликована: Ноя. 20, 2023

Abstract Many organisms have more than two sets of chromosomes, due to whole genome duplication (WGD), and are thus polyploid. Despite usually being an ephemeral state in the history life, polyploidy is widely recognized as important source genetic novelty over macroevolutionary scales. More recently, has also been shown facilitate interspecific gene flow, circumventing reproductive barriers between their diploid ancestors. Yet, implications WGD-linked introgression on community-level evolutionary dynamics remain unknown. Here, we develop a model cytotype within mixed-ploidy populations demonstrate that can fact serve bridge for flow lineages, where fully or partially hampered by species barrier. Polyploid bridges emerge presence triploid organisms, which despite critically low levels viability, still allow transfer alleles states independently evolving species. Notably, while marked divergence prevents WGD-mediated show increased recombination rates offset these constraints, allows efficient sorting at higher-ploidy before into pools. Additionally, derive analytical approximation rate tetraploid level necessary supersede diploids with non-zero rates, especially relevant plant complexes, ubiquitous. Altogether, our results illustrate potential impact polyploid change populations.

Язык: Английский

Influence of polyploidy on morphology and distribution of the Cypress Spurge (Euphorbia cyparissias, Euphorbiaceae) DOI Creative Commons

Špela Pungaršek,

Božo Frajman

Plant Biology, Год журнала: 2024, Номер 26(6), С. 998 - 1007

Опубликована: Июль 9, 2024

Abstract Polyploidy can cause differences in phenotypic and physiological traits among different cytotypes of the same species. Polyploids may have larger organs or occupy ecological niches than their diploid counterparts, therefore they are hypothesized to distributions prosper stressful environments, such as higher elevations. The Cypress spurge ( Euphorbia cyparissias L.; Euphorbiaceae) is a widespread European heteroploid species including di‐ (2 x ), tetra‐ (4 ) hexaploid (6 cytotypes. We tested hypotheses that polyploids more abundant at elevations ancestors case E. . also analysed whether genome downsizing had occurred after polyploidisation. conducted comprehensive geographic sampling 617 populations throughout Europe. estimated relative size using flow cytometry inferred ploidy level each population. scored 13 morphological vegetative seed characters performed statistical analyses. study indicates polyploidisation facilitated colonisation new areas , where tetraploids most widespread, whereas diploids limited putative Pleistocene refugia, mostly southern On other hand, three ploidies do not differ elevational distribution. Although some quantitative exhibited an increasing trend with ploidy, did significantly ploidies, there was no overall differentiation them. Given individuals thrive similar habitats across elevations, we suggest segregation following important trigger for itself autopolyploid plants. demonstrates be crucial range expansion, but it does necessarily influence distribution nor confer phenotype.

Язык: Английский

Процитировано

6
Interspecific transfer of genetic information through polyploid bridges DOI Creative Commons
Felipe Kauai, Quinten Bafort, Frederik Mortier

и другие.

Proceedings of the National Academy of Sciences, Год журнала: 2024, Номер 121(21)

Опубликована: Май 15, 2024

Hybridization blurs species boundaries and leads to intertwined lineages resulting in reticulate evolution. Polyploidy, the outcome of whole genome duplication (WGD), has more recently been implicated promoting facilitating hybridization between polyploid species, potentially leading adaptive introgression. However, because are usually ephemeral states evolutionary history life it is unclear whether WGD-potentiated any appreciable effect on their diploid counterparts. Here, we develop a model cytotype dynamics within mixed-ploidy populations demonstrate that polyploidy can fact serve as bridge for gene flow lineages, where introgression fully or partially hampered by barrier. Polyploid bridges emerge presence triploid organisms, which despite critically low levels fitness, still allow transfer alleles independently evolving species. Notably, while marked genetic divergence prevents polyploid-mediated interspecific flow, show increased recombination rates offset these constraints, allowing efficient sorting at higher-ploidy before into pools. Additionally, derive an analytical approximation rate tetraploid level necessary supersede diploids with nonzero rates, especially relevant plant complexes, ubiquitous. Altogether, our results illustrate potential impact (re)distribution material across ecological communities during evolution, representing force behind reticulation.

Язык: Английский

Процитировано

5
Spatial Distribution of Genetic, Ploidy, and Morphological Variation of the Edaphic Steno-Endemic Alyssum moellendorfianum (Brassicaceae) from the Western Balkans DOI Creative Commons
Jasna Hanjalić, Belma Kalamujić Stroil, Sonja Siljak‐Yakovlev

и другие.

Plants, Год журнала: 2025, Номер 14(2), С. 146 - 146

Опубликована: Янв. 7, 2025

Polyploidy is a powerful mechanism driving genetic, physiological, and phenotypic changes among cytotypes of the same species across both large small geographic scales. These can significantly shape population structure increase evolutionary adaptation potential cytotypes. Alyssum moellendorfianum, an edaphic steno-endemic with narrow distribution in Balkan Peninsula, serves as intriguing case study. We conducted comprehensive analysis genetic diversity species' range, employing array techniques (nuclear microsatellites, amplified fragment length polymorphisms, plastid DNA sequences), flow cytometry (FCM), morphometry, pollen analysis. The study reveals two lineages: spatially distributed diploid tetraploid Clear divergence between diploids tetraploids was shown by AFLP, while sequences confirmed private haplotypes each studied populations. Higher allelic richness following north-south pattern were documented compared to diploids, indicated nuclear microsatellites. Morphometric via principal component (PCA) canonical discriminant (CDA) did not reveal any Nonetheless, distinction size clearly observed. results suggest autopolyploid origin from ancestors. Despite fragmentation very these populations harbour high diversity, which would allow them remain stable if natural processes undisturbed.

Язык: Английский

Процитировано

0
Genome‐Wide Data Uncover Cryptic Diversity With Multiple Reticulation Events in the Balkan‐Anatolian Cardamine (Brassicaceae) Species Complex DOI Open Access
Marek Šlenker, Adam Kantor, Dušan Senko

и другие.

Molecular Ecology, Год журнала: 2024, Номер 33(22)

Опубликована: Окт. 28, 2024

Plant species diversity may be considerably underestimated, especially in evolutionarily complex genera and hotspots that have enabled long-term persistence diversification, such as the Balkan Peninsula. Here, we address topic of underexplored plant underlying evolutionary biogeographic processes by investigating hygrophytic mountain Cardamine acris s.l. distributed Balkans (three subspecies within C. acris) northwestern Anatolia (C. anatolica). We performed a series phylogenetic phylogeographic analyses based on restriction-site associated DNA sequencing (RADseq) target enrichment (Hyb-Seq) data combination with habitat suitability modelling. found anatolica clade nested acris, probably resulting from founder event, uncovered three allopatric cryptic lineages subsp. allowing us to recognise total six entities this complex. observed deepest genetic split western Balkans, which was at odds taxonomy showed no distribution gap. inferred vicariance most likely process for population divergence accompanied gene flow between recognised entities, consistent modelled dynamics. Furthermore, discovered several polyploid populations representing both pure intra- inter-lineage hybrid polyploids, but detected only minor traces hybridization related congeners. Overall, our results illustrate diverse influence history Peninsula, including vicariance, reticulation, polyploidization diversification.

Язык: Английский

Процитировано

0
New species and nomenclatural changes in the checklist of the Croatian flora – 7 DOI Creative Commons
Sandro Bogdanović

Glasnik Hrvatskog botaničkog društva, Год журнала: 2023, Номер 11(2), С. 165 - 169

Опубликована: Дек. 20, 2023

U Glasniku Hrvatskog botaničkog društva do sada je objavljeno šest priloga koji dopunjuju nacionalni popis flore Hrvatske i bazu podataka Flora Croatica (FCD) s novoopisanim novootkrivenim biljnim svojtama. Osim toga provode se nomenklaturne preinake već postojećih svojti. Kako bi taj niz dalje nastavio, ovaj prilog sedmi u nizu te FCD dodano jedanaest novih svojti ( Alnus rohlenae Vít, Douda et Mandák, Catalpa ovata G. Don, Genista sericea Wulfen subsp. rigida (Pamp.) Feoli Chiapella F. Conti, , Iris foetidissima L., Oenothera lindheimeri (Engelm. A.Gray) W. L. Wagner Hoch, Onobrychis alba (Waldst. & Kit.) Desv. calcarea (Vandas) P. Ball, Pistia stratiotes Rudbeckia triloba Salvia hispanica L.) koje su zabilježene po prvi puta za Hrvatsku kao jedna novoopisana vrsta znanost Knautia ehrendorferi Rešetnik, Frajman Schönsw.). toga, izvršena nomenklaturna preinaka koja odnosi na vrstu adriatica Ehrend. uklonjena popisa jer sinonimizirana endemičnom vrstom dalmatica Beck.

Процитировано

0
Interspecific transfer of genetic information through polyploid bridges DOI Creative Commons
Felipe Kauai, Quinten Bafort, Frederik Mortier

и другие.

bioRxiv (Cold Spring Harbor Laboratory), Год журнала: 2023, Номер unknown

Опубликована: Ноя. 20, 2023

Abstract Many organisms have more than two sets of chromosomes, due to whole genome duplication (WGD), and are thus polyploid. Despite usually being an ephemeral state in the history life, polyploidy is widely recognized as important source genetic novelty over macroevolutionary scales. More recently, has also been shown facilitate interspecific gene flow, circumventing reproductive barriers between their diploid ancestors. Yet, implications WGD-linked introgression on community-level evolutionary dynamics remain unknown. Here, we develop a model cytotype within mixed-ploidy populations demonstrate that can fact serve bridge for flow lineages, where fully or partially hampered by species barrier. Polyploid bridges emerge presence triploid organisms, which despite critically low levels viability, still allow transfer alleles states independently evolving species. Notably, while marked divergence prevents WGD-mediated show increased recombination rates offset these constraints, allows efficient sorting at higher-ploidy before into pools. Additionally, derive analytical approximation rate tetraploid level necessary supersede diploids with non-zero rates, especially relevant plant complexes, ubiquitous. Altogether, our results illustrate potential impact polyploid change populations.

Язык: Английский

Процитировано

0