Multiple introductions and efficient propagule dispersion can lead to high genetic variability in an invasive clonal species

Barbosa, Cristiana; Trevisan, Rafael; Estevinho, Tairine Freisleben; Castellani, Tânia Tarabini; Silva-Pereira, Viviane

doi:10.1007/s10530-019-02057-y

Cited by 8 publications

(10 citation statements)

References 41 publications

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“…The current finding is consistent with the similar trend of results reported by Rungnoi et al 1 estimated ΔK = 2 using ISSR and RAPD in 363 Bambara groundnut genotypes while Olukolu et al 5 reported ΔK = 4 using DArT assay of 40 Bambara groundnut genotypes. Additionally, other researchers had the parallel statement such as Wu et al 49 found ΔK = 3 using ISSR; Nilkanta et al 42 found ΔK = 3 using ISSR; Zarei and Erfani-Moghadam et al 65 found ΔK = 3 using SCoT; Barbosa et al 71 found ΔK = 3 using ISSR; Zimisuhara et al 51 found ΔK = 2 using ISSR; Li and Zhang 72 found ΔK = 2 using ISSR.…”

Section: Discussionmentioning

confidence: 99%

“…F st values can range from 0 to 1, where 0 means complete sharing of genetic material (two population can interbreeding freely) or panmictic population and 1 means all genetic variation is explained by the population structure, and that the two populations do not share any genetic diversity, or the populations are fixed 73 . A standard scale of fixation index is F st < 0.05 = little genetic difference; F st = 0.05–0.15 = moderate genetic difference; F st = 0.15–0.25 = great genetic difference; F st > 0.25 = very great genetic difference established by Hartl and Clark, 71 . Moreover, F st > 0.15 = significant differentiation and F st < 0.05 = insignificant differentiation reported by Frankham et al 74 .…”

Section: Discussionmentioning

confidence: 99%

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DNA fingerprinting, fixation-index (Fst), and admixture mapping of selected Bambara groundnut (Vigna subterranea [L.] Verdc.) accessions using ISSR markers system

Khan

Rafii

Ramlee

et al. 2021

Sci Rep

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As a new crop in Malaysia, forty-four Bambara groundnut (Vigna subterranea L. verdc.) genotypes were sampled from eleven distinct populations of different origins to explore the genetic structure, genetic inconsistency, and fixation index. The Bambara groundnut, an African underutilized legume, has the capacity to boost food and nutrition security while simultaneously addressing environmental sustainability, food availability, and economic inequalities. A set of 32 ISSRs were screened out of 96 primers based on very sharp, clear, and reproducible bands which detected a total of 510 loci with an average of 97.64% polymorphism. The average calculated value of PIC = 0.243, RP = 5.30, H = 0.285, and MI = 0.675 representing the efficiency of primer set for genetic differentiation among the genotypes. The ISSR primers revealed the number of alleles (Na = 1.97), the effective number of alleles (Ne = 1.38), Nei's genetic diversity (h = 0.248), and a moderate level of gene flow (Nm = 2.26) across the genotypes studied. The estimated Shannon’s information index (I = 0.395) indicates a high level of genetic variation exists among the accessions. Based on Nei’s genetic dissimilarity a UPMGA phylogenetic tree was constructed and grouped the entire genotypes into 3 major clusters and 6 subclusters. PCA analysis revealed that first principal component extracted maximum variation (PC1 = 13.92%) than second principal component (PC2 = 12.59%). Bayesian model-based STRUCTURE analysis assembled the genotypes into 3 (best ΔK = 3) genetic groups. The fixation-index (Fst) analysis narrated a very great genetic diversity (Fst = 0.19 to 0.40) exists within the accessions of these 3 clusters. This investigation specifies the effectiveness of the ISSR primers system for the molecular portrayal of V. subterranea genotypes that could be used for genetic diversity valuation, detection, and tagging of potential genotypes with quick, precise, and authentic measures for this crop improvement through effective breeding schemes.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

DNA fingerprinting, fixation-index (Fst), and admixture mapping of selected Bambara groundnut (Vigna subterranea [L.] Verdc.) accessions using ISSR markers system

Khan

Rafii

Ramlee

et al. 2021

Sci Rep

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“…In this study, no particular genotype was found dominant across the regions. Lack of correlation between genetic diversity and geographic distances in S. wightiana could be associated with successful sexual reproduction between genets followed by long-range seed dispersion by human or animal agents, and subsequent recruitment in isolated S. wightiana populations enabling the gene flow between populations and forming diverse genetic admixtures 74 . The present study also found the successful transferability of these microsatellite markers, which could be used for further studies at a finer scale.…”

Section: Discussionmentioning

confidence: 99%

Genetic diversity may help evolutionary rescue in a clonal endemic plant species of Western Himalaya

Sofi

Rashid

Lone

et al. 2021

Sci Rep

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Habitat loss due to climate change may cause the extinction of the clonal species with a limited distribution range. Thus, determining the genetic diversity required for adaptability by these species in sensitive ecosystems can help infer the chances of their survival and spread in changing climate. We studied the genetic diversity and population structure of Sambucus wightiana—a clonal endemic plant species of the Himalayan region for understanding its possible survival chances in anticipated climate change. Eight polymorphic microsatellite markers were used to study the allelic/genetic diversity and population structure. In addition, ITS1–ITS4 Sanger sequencing was used for phylogeny and SNP detection. A total number of 73 alleles were scored for 37 genotypes at 17 loci for 8 SSRs markers. The population structural analysis using the SSR marker data led to identifying two sub-populations in our collection of 37 S. wightiana genotypes, with 11 genotypes having mixed ancestry. The ITS sequence data show a specific allele in higher frequency in a particular sub-population, indicating variation in different S. wightiana accessions at the sequence level. The genotypic data of SSR markers and trait data of 11 traits of S. wightiana, when analyzed together, revealed five significant Marker-Trait Associations (MTAs) through Single Marker Analysis (SMA) or regression analysis. Most of the SSR markers were found to be associated with more than one trait, indicating the usefulness of these markers for working out marker-trait associations. Moderate to high genetic diversity observed in the present study may provide insurance against climate change to S. wightiana and help its further spread.

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“…The concept of niche dynamics could derive various features from the niche conservatism hypothesis (Pearman et al 2008), in particular, whether the climatic niche requirements of IAS shift between native and invaded ranges (Atwater et al 2018;Dellinger et al 2016;Manzoor et al 2020). In accordance with this hypothesis, the unifying framework for niche dynamics could be broadly decomposed into three niche patterns, including niche stability (the proportion of an exotic niche of an IAS overlapping with its native niche), niche expansion (the proportion of an exotic niche of IAS that is not occupied in its native range), and niche un lling (the proportion of the native niche of an IAS that is not yet occupied in its exotic range) ( IAS experience niche dynamics in novel environments through ecological and/or evolutionary changes, for example, release from top-down regulators and/or niche occupation in invaded ranges (Alexander and Edwards 2010), increased phenotypic plasticity associated with rapid growth and fast phenological development (Hahn et al 2012), and/or rapid evolutionary adjustments driven by high genetic diversity (Barbosa et al 2019). However, these mechanisms may also bring about inconsistent niche dynamic patterns in IAS in different invaded environments (Datta et al 2019;Dinis et al 2020;Pili et al 2020).…”

Section: Introductionmentioning

confidence: 99%

“…Thus, the occurrence of inconsistency in niche dynamics could be closely associated with adaptive responses of IAS resulting from differences in invasion trajectories (Banerjee et al 2019b; Barbosa et al 2019). The invasion trajectory demonstrates a series of stages that an IAS goes through when its propagules are transported to a new area (Reise et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Multiple invasion trajectories induce niche dynamics inconsistency and increase risk uncertainty of a plant invader

Zhang

Zhu

Wan

et al. 2022

Preprint

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Our knowledge of how niche dynamic patterns respond to invasion trajectories and influence invasion risk prediction is elusive for the majority of notorious invaders, hindering scientific understanding, biosecurity planning and practice, and management implementation. We used Mikania micrantha, one of the most notorious invasive alien species in the world, to test the hypothesis that multiple invasion trajectories could induce niche dynamics inconsistency and increase risk uncertainty of invasive alien species. We compiled a robust database of M. micrantha occurrence across its native range in Central and South America and invaded ranges in China. This database was used to clarify different invaded ranges and invasion trajectories of M. micrantha in China. Principle Component Analysis of climatic variables associated with the database was used to detect its niche dynamic patterns associated with multiple invasion trajectories. Maximum Entropy algorithm was used to predict the high-risk area of M. micrantha invasion using occurrence datasets for invaded ranges where niches remained conservative, and to identify area changes with the inclusion of occurrences datasets for invaded ranges where niche shifts occurred. M. micrantha invasion occurred in three geographically distinct regions, with conservative climate niches in southern and southeastern China and climatic niche shifts in southwestern China. A high-risk area for M. micrantha invasion spanned multiple provinces and cities, and expanded considerably with the inclusion of the occurrence dataset for southwestern China. Our findings contribute to the theoretical understanding of invasion mechanisms and the practical optimization of biosecurity planning and implementation.

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Multiple introductions and efficient propagule dispersion can lead to high genetic variability in an invasive clonal species

Cited by 8 publications

References 41 publications

DNA fingerprinting, fixation-index (Fst), and admixture mapping of selected Bambara groundnut (Vigna subterranea [L.] Verdc.) accessions using ISSR markers system

DNA fingerprinting, fixation-index (Fst), and admixture mapping of selected Bambara groundnut (Vigna subterranea [L.] Verdc.) accessions using ISSR markers system

Genetic diversity may help evolutionary rescue in a clonal endemic plant species of Western Himalaya

Multiple invasion trajectories induce niche dynamics inconsistency and increase risk uncertainty of a plant invader

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