Why are tall-statured energy grasses of polyploid species complexes potentially invasive? A review of their genetic variation patterns and evolutionary plasticity

Lambertini, Carla

doi:10.1007/s10530-019-02053-2

Cited by 11 publications

(12 citation statements)

References 148 publications

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“…Additionally, it indicates that future efforts of comparative genome sequencing in the Arundo genus should include A. formosana as reference species. According to our results, the evolutionary lineage of the A. donax invasive clone originated between the late Miocene and the early Pliocene, and possibly predates the radiation of the A. donax eastern clade, confirming A. donax invasive clone as one of the most ancient and invasive super-genotypes known [ 11 , 30 ]. The chloroplast phylogenetic analyses, also, consistently suggest that A. donax var.…”

Section: Discussionsupporting

confidence: 52%

Phylogenomic proof of Recurrent Demipolyploidization and Evolutionary Stalling of the “Triploid Bridge” in Arundo (Poaceae)

Jike

Zadra

et al. 2020

IJMS

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Polyploidization is a frequent phenomenon in plants, which entails the increase from one generation to the next by multiples of the haploid number of chromosomes. While tetraploidization is arguably the most common and stable outcome of polyploidization, over evolutionary time triploids often constitute only a transient phase, or a “triploid bridge”, between diploid and tetraploid levels. In this study, we reconstructed in a robust phylogenomic and statistical framework the evolutionary history of polyploidization in Arundo, a small genus from the Poaceae family with promising biomass, bioenergy and phytoremediation species. Through the obtainment of 10 novel leaf transcriptomes for Arundo and outgroup species, our results prove that recurrent demiduplication has likely been a major driver of evolution in this species-poor genus. Molecular dating further demonstrates that the species originating by demiduplication stalled in the “triploid bridge” for evolutionary times in the order of millions of years without undergoing tetratploidization. Nevertheless, we found signatures of molecular evolution highlighting some of the processes that accompanied the genus radiation. Our results clarify the complex nature of Arundo evolution and are valuable for future gene functional validation as well as reverse and comparative genomics efforts in the Arundo genus and other Arundinoideae.

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Section: Discussionsupporting

confidence: 52%

Phylogenomic proof of Recurrent Demipolyploidization and Evolutionary Stalling of the “Triploid Bridge” in Arundo (Poaceae)

Jike

Zadra

et al. 2020

IJMS

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“…1). Domestication of plants for agriculture is the longest practiced form of domestication (Ellstrand et al 2010), whereas domestication for ornamental and biomass production is more recent (Dehnen-Schmutz and Touza 2008;Lambertini 2019). Domestication events in introduced ranges are also becoming common (Meyer et al 2012), which may increase invasion risk because trait and environmental selection is occurring simultaneously.…”

Section: Domesticationmentioning

confidence: 99%

“…Concerns about invasion risk for biomass-producing biotypes include timing of crop harvests, hybridization events, and fewer generations of domestication than other types of cultivation. Unlike selection for greater productivity of agricultural and sometimes ornamental biotypes, biotypes for biomass production are often harvested after plants senesce and seeds have dispersed, which may promote establishment and spread in surrounding natural areas (Lambertini 2019). Hybridization between biomassproducing biotypes and native species (Lambertini 2019) may increase invasion risk, even for poor quality offspring, if hybrids gain traits such as enhanced tolerance to pests or disease.…”

Section: Biomass-producing Biotypes Under Minimal Managementmentioning

confidence: 99%

“…Unlike selection for greater productivity of agricultural and sometimes ornamental biotypes, biotypes for biomass production are often harvested after plants senesce and seeds have dispersed, which may promote establishment and spread in surrounding natural areas (Lambertini 2019). Hybridization between biomassproducing biotypes and native species (Lambertini 2019) may increase invasion risk, even for poor quality offspring, if hybrids gain traits such as enhanced tolerance to pests or disease. Additionally, biomass-producing biotypes that have undergone little domestication may have greater genetic diversity and retention of traits than other domesticated biotypes (Bouton 2007), limiting their reliance on cultural practices and increasing the probability that the biotypes can spread in natural areas.…”

Section: Biomass-producing Biotypes Under Minimal Managementmentioning

confidence: 99%

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Potential effects of domestication on non-native plant invasion risk

et al. 2021

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Plant domestication can increase propagule pressure and alter functional traits that may contribute to invasion risk, such as high productivity. Domesticated biotypes (i.e., any cultivar, variety, or other infraspecific taxa that have been domesticated) have a unique evolutionary history that often involves enhanced propagule pressure, selection of traits for human use, and cultural practices to increase establishment success. These elements can alter the invasion process from that of non-domesticated non-native species. Understanding which traits are consistently selected for, how strongly those traits are altered by selection, and in which cases they influence invasion risk would facilitate actions that reduce impacts of domesticated biotypes on natural and agricultural systems. We identified commonalities in trait selection and management intensity among groups of domesticated biotypes selected for particular purposes (e.g., food, ornamental, and biomass production) that indicate predictable invasion risk and management approaches for biotypes from each group. Broadly, food crops that rely on high intensity management tend to have relatively low invasion risk, while biotypes developed for ornamental purposes are subject to more variable management intensity and may have greater risk of establishment and spread in natural areas without cultural practices (e.g., weeding, Communicated by Scott J Meiners.

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“…In United States, the range of exotic Phragmites australis has expanded from a very limited area to span almost the entire country within just 50 years, forcing the native lineages to the very north; it is thus considered an invasive plant (Saltonstall 2002). One hypothesis for the development of invasiveness in P. australis is related to polyploidizations (Clevering and Lissner 1999;Lambertini 2019), because polyploids, due to their higher level of genomic plasticity, can outperform their diploid progenitors in environments with high abiotic stress, and thus have access to a wider range of habitats (Godfree, et al 2017). Successful allopolyploids may thus develop into invasive species and drive diploid ancestors to extinction by recurrent hybridizations with them.…”

Section: Introductionmentioning

confidence: 99%

Genome-wide analysis tracks the emergence of intraspecific polyploids inPhragmites australis

Wang

Liu

Yin

et al. 2021

Preprint

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Polyploidization is a common event in plant evolution, and it plays an important role in plant speciation and adaptation. To address the role of polyploidization in grass diversification, we studied Phragmites australis, a species with intraspecific variation of chromosome numbers ranging from 2n=36 to 144. A combined analysis of genome structure, phylogeny and population genetics were used to study the evolution of P. australis. Whole-genome sequencing of three representative lineages revealed the allopolyploid origin of the species, with subgenome divergence dating back to approximately 29 million years ago, and the genomes showed hallmarks of relaxed selection associated with asexual propagation. Genome-wide analysis of 88 individuals from different populations around the world using restriction site associated DNA sequencing (RAD-seq) identified seven main intraspecific lineages with extensive genetic admixture. Each lineage was dominated by a distinct ploidy level, mostly tetraploid or octoploid, suggesting several polyploid events. Furthermore, we observed octoploid and hexaploid lineages at contact zones in Romania, Hungary and South Africa, suggestively due to genomic conflicts of allotetraploid parental lineages. Polyploidy may have evolved as a strategy to escape from the evolutionary dead-end of asexual propagation and the resulting decrease in genomic plasticity.

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Why are tall-statured energy grasses of polyploid species complexes potentially invasive? A review of their genetic variation patterns and evolutionary plasticity

Cited by 11 publications

References 148 publications

Phylogenomic proof of Recurrent Demipolyploidization and Evolutionary Stalling of the “Triploid Bridge” in Arundo (Poaceae)

Phylogenomic proof of Recurrent Demipolyploidization and Evolutionary Stalling of the “Triploid Bridge” in Arundo (Poaceae)

Potential effects of domestication on non-native plant invasion risk

Genome-wide analysis tracks the emergence of intraspecific polyploids inPhragmites australis

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