Geographical pattern of genetic diversity in <i>Capsella bursa‐pastoris</i> (Brassicaceae)—A global perspective

Wesse, Christina; Welk, Erik; Hurka, Herbert; Neuffer, Barbara

doi:10.1002/ece3.7010

Cited by 20 publications

(23 citation statements)

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“…The two allopolyploids C. bursa‐pastoris and C. thracica are geographically and genetically placed in between, albeit the geographic signal of the former one is obscured due to its immense colonization potential (Figures 3 and 7 ). Our SNP data also support the two lineages within C. bursa‐pastoris as previously revealed by multilocus isozyme analyses—a Mediterranean and a temperate Eurasian lineage (Wesse et al., 2021 )—and are in agreement with the SNP‐based analyses of Cornille et al. ( 2016 ).…”

Section: Discussionsupporting

confidence: 90%

“…However, discontinuous mosaic variation patterns were also observed (Figure 5; Figures ). This overall genetic variation pattern is typical for recent colonization events (for C. bursa‐pastoris see for instance Hurka, 1984, 1990, Wesse et al., 2021). Interestingly, flowering behavior does not follow this pattern.…”

Section: Discussionmentioning

confidence: 66%

“…In the recent years, allopolyploid C. bursa‐pastoris received special attention because of its young age (Douglas et al., 2015 ; Kasianov et al., 2017 ; Kryvokhyzha, Salcedo et al., 2019 , Kryvokhyzha, Milesi et al, 2019 ). The genome duplication in C. bursa‐pastoris coincides with its enormous colonization ability to migrate into different climate zones and colonize regions far above those inhabited by its parent species (Hurka & Neuffer, 1997 ; Wesse et al., 2021 ). It would appear that C. bursa‐pastoris quickly spread over Eurasia shortly after its origin in the Late Pleistocene.…”

Section: Discussionmentioning

confidence: 99%

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Pleistocene dynamics of the Eurasian steppe as a driving force of evolution: Phylogenetic history of the genus Capsella (Brassicaceae)

Čalasan

Hurka

German

et al. 2021

Ecology and Evolution

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Capsella is a model plant genus of the Brassicaceae closely related to Arabidopsis. To disentangle its biogeographical history and intrageneric phylogenetic relationships, 282 individuals of all five currently recognized Capsella species were genotyped using a restriction digest‐based next‐generation sequencing method. Our analysis retrieved two main lineages within Capsella that split c. one million years ago, with western C. grandiflora and C. rubella forming a sister lineage to the eastern lineage consisting of C. orientalis. The split was attributed to continuous latitudinal displacements of the Eurasian steppe belt to the south during Early Pleistocene glacial cycles. During the interglacial cycles of the Late Pleistocene, hybridization of the two lineages took place in the southwestern East European Plain, leading to the allotetraploid C. bursa‐pastoris. Extant genetic variation within C. orientalis postdated any extensive glacial events. Ecological niche modeling showed that suitable habitat for C. orientalis existed during the Last Glacial Maximum around the north coast of the Black Sea and in southern Kazakhstan. Such a scenario is also supported by population genomic data that uncovered the highest genetic diversity in the south Kazakhstan cluster, suggesting that C. orientalis originated in continental Asia and migrated north‐ and possibly eastwards after the last ice age. Post‐glacial hybridization events between C. bursa‐pastoris and C. grandiflora/rubella in the southwestern East European Plain and the Mediterranean gave rise to C. thracica. Introgression of C. grandiflora/rubella into C. bursa‐pastoris resulted in a new Mediterranean cluster within the already existing Eurasian C. bursa‐pastoris cluster. This study shows that the continuous displacement and disruption of the Eurasian steppe belt during the Pleistocene was the driving force in the evolution of Capsella.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 66%

Section: Discussionmentioning

confidence: 99%

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Pleistocene dynamics of the Eurasian steppe as a driving force of evolution: Phylogenetic history of the genus Capsella (Brassicaceae)

Čalasan

Hurka

German

et al. 2021

Ecology and Evolution

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“…The bridgehead effect has been suggested to promote the spread of phenotypic traits enhancing invasion success in secondary invasive populations, as these traits are already selected for and widespread in the initial introduced population, although there is limited support for such a phenomenon (Bertelsmeier & Keller, 2018). Investigating patterns of genetic diversity in native and introduced populations can therefore provide insights into the introduction history of invasive species (e.g., Geburzi et al, 2020; Hirsch et al, 2021; Resh et al, 2021; Wesse et al, 2021; Winkler et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Extensive human‐mediated jump dispersal within and across the native and introduced ranges of the invasive termite Reticulitermes flavipes

et al. 2021

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As native ranges are often geographically structured, invasive species originating from a single source population only carry a fraction of the genetic diversity present in their native range. This invasion pathway is thus often associated with a drastic loss of genetic diversity resulting from a founder event. However, the fraction of diversity brought to the invasive range may vary under different invasion histories, increasing with the size of the propagule, the number of re-introduction events, and/or the total genetic diversity represented by the various source populations in a multiple-introduction scenario. In this study, we generated a SNP dataset for the invasive termite Reticulitermes flavipes from 23 native populations in the eastern United States and six introduced populations throughout the world. Using population genetic analyses and approximate Bayesian computation (ABC), we investigated its worldwide invasion history. We found a complex invasion pathway with multiple events out of the native range and bridgehead introductions from the introduced population in France. Our data suggest that extensive long-distance jump dispersal appears common in both the native and introduced ranges of this species, likely through human transportation. Overall, our results show that similar to multiple introduction events into the invasive range, admixture in the native range prior to invasion can potentially favor invasion success by increasing the genetic diversity that is later transferred to the introduced range.Extensive human-mediated jump dispersal within and across the native and introduced ranges of the invasive termiteReticulitermes flavipes

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“…The maximum entropy method is available in the MaxEnt software and has several advantages, i.e., it is possible to obtain a high level of certainty using limited records of presence [16]. Hence, it serves to determine the environmental niche of different genotypes, if their geographic distribution is known [17,18]. Furthermore, this model has been used to identify suitable areas for distribution and use of sideoats grama in Mexico and the United States [19,20].…”

Section: Introductionmentioning

confidence: 99%

Genetic structure and temporal environmental niche dynamics of sideoats grama [Bouteloua curtipendula (Michx.) Torr.] populations in Mexico

et al. 2021

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In the past years, several plant breeding programs have been done to select outstanding genotypes of sideoats grama (Bouteloua curtipendula) for restoration purposes. Such programs have been focused mainly on agronomic traits; however, little attention has been paid to the genetic structure and environmental adaptation of the selected genotypes. Thus, in this study we evaluated the genetic structure of 85 sideoats grama populations in Mexico. In addition, we modeled the past, present and future environmental niche of the genetic clusters of this species. Ninety sideoats grama populations were genetically analyzed through AFLP (Amplified Fragment Length Polymorphisms) markers. The environmental niche of the population clusters was modeled by using the maximum entropy method. The genetic analysis separated the populations into two genetically different clusters (p = 0.0003). The differentiation of these lineages can be partially explained by the paleoclimatic events experienced during the last interglacial and glacial maximums. Consequently, the genetic clusters have different environmental niche at the present time. Suitability areas for the distribution of Cluster I are mainly located in the central part of the country while the environmental niche of Cluster II is located in the semiarid region, close to the mountain range of the Sierra Madre Occidental. Thus, selection and restoration programs with sideoats grama must be carried out using local germplasm from each environmental niche. Given the environmental niche of both genetic clusters will suffer changes in the near and mid-century future, climate change must be considered for genotypes selection and restoration programs.

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Geographical pattern of genetic diversity in Capsella bursa‐pastoris (Brassicaceae)—A global perspective

Abstract: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 20 publications

References 48 publications

Pleistocene dynamics of the Eurasian steppe as a driving force of evolution: Phylogenetic history of the genus Capsella (Brassicaceae)

Pleistocene dynamics of the Eurasian steppe as a driving force of evolution: Phylogenetic history of the genus Capsella (Brassicaceae)

Extensive human‐mediated jump dispersal within and across the native and introduced ranges of the invasive termite Reticulitermes flavipes

Genetic structure and temporal environmental niche dynamics of sideoats grama [Bouteloua curtipendula (Michx.) Torr.] populations in Mexico

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