Species delimitation tests of endemic Lepidium papilliferum and identification of other possible evolutionarily significant units in the Lepidium montanum complex (Brassicaceae) of western North America

Larson, Steven R.; Culumber, C. M.; Schweigert, R. N.; Chatterton, N. J.

doi:10.1007/s10592-009-0002-2

Cited by 7 publications

(5 citation statements)

References 54 publications

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“…sulphureus chemotypes B–G is consistent with different genotypes/races in close geographic proximity, which is supported by both the Bayesian analysis and principle component analysis. The correlation coefficients reported here were similar yet lower to some reported in the literature. − Spatial scales ranged from 0 to 487 km for the reported correlation coefficients. Stochastic dispersal events on this limited spatial scale may result in much lower correlation coefficients.…”

Section: Resultssupporting

confidence: 79%

Genetic Relationships among Different Chemotypes of Lupinus sulphureus

Cook

Mott

Larson

et al. 2018

J. Agric. Food Chem.

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Lupines (Lupinus spp.) are a common plant legume species found on western U.S. rangelands. Lupinus spp. may contain quinolizidine and/or piperidine alkaloids that can be toxic and/or teratogenic to grazing livestock. Alkaloid profiles may vary between and within a species. The objectives of this study were to (1) further explore the characteristic alkaloid profiles of Lupinus sulphureus using field collections and (2) explore the phylogenetic relationship of the different populations and chemotypes of L. sulphureus using the amplified fragment length polymorphism method of DNA fingerprinting, thus providing possible explanations to the phenomena of multiple chemotypes within a species. A total of 49 accessions of L. sulphureus were classified into seven chemotypes. The DNA profiles showed that one L. sulphureus chemotype, chemotype A, is genetically divergent from the other chemotypes of L. sulphureus, suggesting that it represents an unresolved lupine taxon, possibly a new lupine species. Additionally, the different chemotypes of L. sulphureus represented different genetic groups, as shown by Bayesian cluster analysis and principle component analysis.

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Section: Resultssupporting

confidence: 79%

Genetic Relationships among Different Chemotypes of Lupinus sulphureus

Cook

Mott

Larson

et al. 2018

J. Agric. Food Chem.

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“…Because populations at the periphery of the Alps occupy probable refugial areas, the detection of several phenotypes in the FOE and GOE populations characterized by AFLP constitutions similar to those of central Balkan phenotypes might be interpreted as persistence of ancestral genetic characteristics. Such ancestral patterns have recently also been detected using AFLPs in Saxifraga ) and in Lepidium species (Larson et al 2010). However, with respect to population age structure, population turnover, and persistence of individual plants of A. montana, almost no species-specific information is available.…”

Section: Reduced Genetic Diversity In Peripheral Populations?mentioning

confidence: 63%

“…On the basis of DNA sequence information (i.e., ITS: Baldwin et al 1995;trnH/psbA: Degtjareva et al 2012) and AFLP fingerprints (Vos et al 1995), the genetic structure and diversity of the peripheral Austrian populations were compared to those of central populations. Recently, this combination of molecular markers was successfully applied as a powerful tool for identification of ESUs in the Lepidium montanum complex (Larson et al 2010). Here, it is used to answer the following questions: (1) How are populations of A. montana ssp.…”

Section: Introductionmentioning

confidence: 99%

Genetic Variation, Biogeographical History, and Conservation ofAnthyllis montanaL. Ssp.jacquinii(Kern.) Hayek (Fabaceae) at Its Northern Distribution Limit

Kropf

2012

International Journal of Plant Sciences

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Genetic patterns in Anthyllis montana ssp. jacquinii populations from the species' central Balkan distribution toward its northern distribution limit in Austria were analyzed against the background of their evolution, biogeography, and conservation. Genetic structure and diversity were assessed by DNA sequencing (ITS, trnH/ psbA) and amplified fragment length polymorphisms (AFLPs). Provisionally, seed mass data were added. Four homoplastic mutations were observed within the trnH/psbA intergenic spacer, while ITS sequences were identical across populations. Population differentiation, as assessed by AFLPs, was moderate (F ST ¼ 0:185). Isolation by distance was absent within the peripheral and central regions. Genetic-structure analyses revealed two groups, separating the two northernmost Austrian populations from the remaining populations. Population sizes were not correlated with the overall rather low genetic-diversity values, but AFLP diversity was not further reduced in peripheral populations. Seed mass was similar across populations. The unexpected diversity level of the peripheral populations might be best explained by persistence of ancient genetic diversity and accumulation of new mutations. The main evolutionary process acting is probably genetic drift, as confirmed by AFLP outlier analysis. Biogeographical and conservation perspectives emphasize the importance of the peripheral Austrian populations representing an independent gene pool within A. montana ssp. jacquinii.

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“…The Mantel's correlation test between AFLP genetic and geographical distances was used by Larson et al (2010) for species delimitation tests of the endemic Lepidium papilliferum (L.F. Hend.)…”

Section: Herbarium Specimens Ymentioning

confidence: 99%

Morphological and Genetic Variation among Four High Desert Sphaeralcea Species

Sriladda¹,

Kratsch²,

Larson³

et al. 2012

horts

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The herbaceous perennial species in the genus Sphaeralcea have desirable drought tolerance and aesthetics with potential for low-water use landscapes in the Intermountain West. However, taxonomy of these species is ambiguous, which leads to decreased consumer confidence in the native plant nursery industry. The goal of this study was to test and clarify morphological and genetic differentiation among four putative Sphaeralcea species. Morphological characteristics of the type specimens were used as species references in canonical variate analysis to generate a classification model. This model was then used to assign putative species names to herbarium voucher specimens and to field-collected voucher specimens to clarify genetic variation among species. Field specimens were also classified using Bayesian cluster analyses of amplified fragment length polymorphism (AFLP) genotypes. Sphaeralcea coccinea (Nutt.) Rydb. and S. grossulariifolia (Hook. & Arn.) Rydb. formed a composite group morphologically and genetically distinct from the S. munroana (Douglas) Spach and S. parvifolia A. Nelson composite group. Each composite group displayed genetic isolation by geographic distance. Also, morphological traits of S. munroana and S. parvifolia correlated to geographic distance. Taken together these results suggest that our samples represent two sympatric yet reproductively isolated groups. Distinguishing between these two Sphaeralcea composite groups can create greater consumer confidence in plant material developed for use in Intermountain West low-water landscaping.

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Species delimitation tests of endemic Lepidium papilliferum and identification of other possible evolutionarily significant units in the Lepidium montanum complex (Brassicaceae) of western North America

Cited by 7 publications

References 54 publications

Genetic Relationships among Different Chemotypes of Lupinus sulphureus

Genetic Relationships among Different Chemotypes of Lupinus sulphureus

Genetic Variation, Biogeographical History, and Conservation ofAnthyllis montanaL. Ssp.jacquinii(Kern.) Hayek (Fabaceae) at Its Northern Distribution Limit

Morphological and Genetic Variation among Four High Desert Sphaeralcea Species

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