Low Genetic Diversity in the Rare Madeiran Endemic Armeria maderensis (Plumbaginaceae)

Piñeiro, Rosalía; Aguilar, Javier Fuertes; Sequeira, Miguel Menezes de; Feliner, Gonzalo Nieto

doi:10.1007/s12224-009-9030-4

Cited by 9 publications

(4 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, we identified high levels of genetic diversity (nuclear and plastid) among populations of Oenothera harringtonii, a narrow endemic. This is in contrast to the lower genetic diversity documented in many species with restricted geographic distributions (endemics) when compared to their more widespread congeners (Hamrick & Godt, 1996;Nybom, 2004;Piñeiro et al, 2009; though see Gitzendanner & Soltis, 2000;Cole, 2003). Furthermore, while many annual plant species have lower outcrossing rates than longer-lived species (Vogler & Kalisz, 2001;Charlesworth, 2006), we observed high outcrossing rates in this study.…”

Section: Discussioncontrasting

confidence: 96%

Hawkmoth Pollination Facilitates Long-distance Pollen Dispersal and Reduces Isolation Across a Gradient of Land-use Change

Skogen

Overson

Hilpman

et al. 2019

annals

View full text Add to dashboard Cite

Land-use change is among the top drivers of global biodiversity loss, which impacts the arrangement and distribution of suitable habitat for species. Population-level effects include increased isolation, decreased population size, and changes to mutualistic and antagonistic interactions. However, the extent to which species are impacted is determined by life history characteristics including dispersal. In plants, mating dynamics can be changed in ways that can negatively impact population persistence if dispersal of pollen and/or seed is disrupted. Long-distance dispersal has the potential to buffer species from the negative impacts of land-use change. Biotic vectors of long-distance dispersal have been less frequently studied, though specific taxa are known to travel great distances. Here, we describe population genetic diversity and structure in a sphingophilous species that is experiencing habitat fragmentation through land-use change, Oenothera harringtonii W. L. Wagner, Stockh. & W. M. Klein (Onagraceae). We use 12 nuclear and four plastid microsatellite markers and show that pollen dispersal by hawkmoths drives high gene flow and low population differentiation despite a range-wide gradient of land-use change and habitat fragmentation. By separating the contributions of pollen and seed dispersal to gene flow, we show that most of the genetic parameters are driven by hawkmoth-facilitated long-distance pollen dispersal, but populations with small, effective population sizes experience higher levels of relatedness and inbreeding. We discuss considerations for conservation efforts for this and other species that are pollinated by long-distance dispersers.

show abstract

Section: Discussioncontrasting

confidence: 96%

Hawkmoth Pollination Facilitates Long-distance Pollen Dispersal and Reduces Isolation Across a Gradient of Land-use Change

Skogen

Overson

Hilpman

et al. 2019

annals

View full text Add to dashboard Cite

show abstract

“…This study is among those that have shown that rare species have less genetic variation than widespread species [28,29]. However, by virtue of selecting the most polymorphic microsatellites, number of alleles tends to be higher in the species from which they were originally developed [30–32] and it is impossible to estimate to which extent cross-amplification procedure itself also contributed to the reduced genetic variation observed in the population of short-tooth sage.…”

Section: Resultsmentioning

confidence: 99%

Development of New Microsatellite Markers for Salvia officinalis L. and Its Potential Use in Conservation-Genetic Studies of Narrow Endemic Salvia brachyodon Vandas

Radosavljević

Šatović

Jakse

et al. 2012

IJMS

View full text Add to dashboard Cite

Nine new microsatellite markers (SSR) were isolated from Salvia officinalis L. A total of 125 alleles, with 8 to 21 alleles per locus, were detected in a natural population from the east Adriatic coast. The observed heterozygosity, expected heterozygosity, and polymorphic information content ranged from 0.46 to 0.83, 0.73 to 0.93 and 0.70 to 0.92, respectively. New microsatellite markers, as well as previously published markers, were tested for cross-amplification in Salvia brachyodon Vandas, a narrow endemic species known to be present in only two localities on the Balkan Peninsula. Out of 30 microsatellite markers tested on the natural S. brachyodon population, 15 were successfully amplified. To obtain evidence of recent bottleneck events in the populations of both species, observed genetic diversity (HE) was compared to the expected genetic diversity at mutation-drift equilibrium (HEQ) and calculated from the observed number of alleles using a two-phased mutation model (TPM). Recent bottleneck events were detected only in the S. brachyodon population. This result suggests the need to reconsider the current threat category of this endemic species.

show abstract

“…To cover the widest genomic region and ensure high‐quality reproducible bands, an initial screening was developed using a subsample of 30 individuals randomly obtained from 10 populations. AFLP analyses have been developed in several species of the genus Armeria (Baumbach and Hellwig, 2007; Piñeiro et al, 2007, 2009), and substantial information on possible primer combinations is available. Forty primer combinations were used in the initial screening and checked for band polymorphism and pattern reproducibility.…”

Section: Methodsmentioning

confidence: 99%

Genetic patterns of habitat fragmentation and past climate‐change effects in the Mediterranean high‐mountain plant Armeria caespitosa (Plumbaginaceae)

García‐Fernández

Iriondo

Escudero

et al. 2013

American J of Botany

View full text Add to dashboard Cite

show abstract

Low Genetic Diversity in the Rare Madeiran Endemic Armeria maderensis (Plumbaginaceae)

Cited by 9 publications

References 53 publications

Hawkmoth Pollination Facilitates Long-distance Pollen Dispersal and Reduces Isolation Across a Gradient of Land-use Change

Hawkmoth Pollination Facilitates Long-distance Pollen Dispersal and Reduces Isolation Across a Gradient of Land-use Change

Development of New Microsatellite Markers for Salvia officinalis L. and Its Potential Use in Conservation-Genetic Studies of Narrow Endemic Salvia brachyodon Vandas

Genetic patterns of habitat fragmentation and past climate‐change effects in the Mediterranean high‐mountain plant Armeria caespitosa (Plumbaginaceae)

Contact Info

Product

Resources

About