Poa secunda Presl versus P. sandbergii Vasey (Poaceae)

Arnow, Lois A.

doi:10.2307/2418452

Cited by 10 publications

(5 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A polyploid complex, P . secunda is composed of variants that may have distinct ecological and biogeographical roles [1], though they are polymorphic variants of a single species [2,3] with a ploidy range from 2n = 42–100 [4–7]. These variants include big bluegrass ( ‘ Ampla ’ ), Canby’s bluegrass (‘Canbyi ’ ), Pacific/slender bluegrass (‘Gracillima’), Nevada bluegrass (‘Nevadensis’), alkali bluegrass (‘Junctifolia’), Sandberg bluegrass (‘Sandbergii’), and pine bluegrass ( ‘ Scabrella’) [1,8].…”

Section: Introductionmentioning

confidence: 99%

Poa secunda local collections and commercial releases: A genotypic evaluation

Shaw

Mummey

2017

PLoS ONE

View full text Add to dashboard Cite

The genetics of native plants influence the success of ecological restoration, yet genetic variability of local seed collections and commercial seed releases remains unclear for most taxa. Poa secunda, a common native grass species in Intermountain West grasslands and a frequent component of restoration seed mixes, is one such species. Here, we evaluate the genetic variation of local Poa secunda collections in the context of wild populations and commercial seed releases. We evaluated AFLP markers for seven Poa secunda collections made over a 4000-hectare area and four commercial releases (High Plains, MT-1, Opportunity, and Sherman). We compare the genetic distance and distribution of genetic variation within and between local collections and commercial releases. The extent and patterns of genetic variation in our local collections indicate subtle site differences with most variation occurring within rather than between collections. Identical genetic matches were usually, but not always, found within 5 m2 collection sites. Our results suggest that the genetic variation in two Poa secunda releases (High Plains and MT-1) is similar to our local collections. Our results affirm that guidelines for Poa secunda seed collection should follow recommendations for selfing species, by collecting from many sites over large individual sites.

show abstract

Section: Introductionmentioning

confidence: 99%

Poa secunda local collections and commercial releases: A genotypic evaluation

Shaw

Mummey

2017

PLoS ONE

View full text Add to dashboard Cite

show abstract

“…), canby bluegrass ( P. canbyi Scribn. ), and sandberg bluegrass ( P. sandbergii Vasey) (Arnow, 1981; Kellogg, 1985a,b). Yet, quantitative studies of variation in agamospermous grasses give little evidence of microspecies formation (Usberti and Jain, 1978; Ishimitsu and Tateoka, 1983; Helgadóttir and Snaydon, 1986; Kellogg, 1990).…”

mentioning

confidence: 99%

AFLP Variation in Agamospermous and Dioecious Bluegrasses of Western North America

et al. 2001

View full text Add to dashboard Cite

Native perennial bluegrasses are common and persistent in the understory steppe vegetation of western North America. The agamospermous Poa secunda Presl. complex circumscribes a number of commonly recognized forms including big bluegrass (P. ampla Merr.), canby bluegrass (P. canbyi Scribn.), and sandberg bluegrass (P. sandbergii Vasey). Poa fendleriana (Steudel) Vasey is a dioecious, morphologically distinct bluegrass species that is also native to western North America. The amplified fragment length polymorphism (AFLP) method was used to analyze genetic variation within and among cv. Canbar canby bluegrass, cv. Sherman big bluegrass, two allopatric natural populations of sandberg bluegrass, and one natural germplasm source of P. fendleriana Results indicate that Sherman and Canbar are comprised of one or several fixed genotypes, respectively, that are related to sandberg bluegrass. Although several fixed genotypes were also detected within the two natural sandberg bluegrass populations, high levels of genetic diversity were present in the agamospermous sandberg populations and dioecious P. fendleriana population. Patterns of AFLP variation in P. secunda are consistent with facultative apomixis and outcrossing mode of reproduction. Moreover, population differentiation between the two highly diverse natural sandberg bluegrass populations, collected from sites nearly 600 km apart, is very low (GS = 0.14) and reflect a high degree of gene flow. However, the AFLP profiles of Canbar canby bluegrass and Sherman big bluegrass were distinct from sandberg bluegrass. The P. secunda complex, as a group, was clearly distinguishable from P. fendleriana Thus, DNA fingerprinting was used to characterize naturally diverse bluegrass germplasm sources that may be used for large‐scale revegetation efforts across the western USA.

show abstract

“…Notes on the level of confidence in the classification of plant associations and community types are provided in situations where the confidence is less than high. Plant species nomenclature follows Hitchcock and Cronquist (1973), with the following exceptions: Salix follows Brunsfeld and Johnson (1985), with the exception of Salixamygdaloides, Salix lasiolepis, and Salixscouleriana which follow Hitchcock and Cronquist (1973); Carex utriculata as treated by Reznicek (1987); Leucopoa kingii, Poa cusickii, and Poa epilis as treated by Cronquist and others (1977); Artemisia follows Cronquist and others (1994), except that Artemisia arbuscula arbuscula, Artemisia arbuscula thermopola, and Artemisia longiloba are recognized as treated by Winward and Tisdale (1977), and Artemisia tridentata xericensis by Rosentreter and Kelsey (1991); and Poa secunda as treated by Arnow (1981 ).…”

Section: Synecological Perspective and Nomenclaturementioning

confidence: 99%

Representativeness assessment of research natural areas on National Forest System lands in Idaho

Rust¹

2000

View full text Add to dashboard Cite

show abstract

Poa secunda Presl versus P. sandbergii Vasey (Poaceae)

Cited by 10 publications

References 14 publications

Poa secunda local collections and commercial releases: A genotypic evaluation

Poa secunda local collections and commercial releases: A genotypic evaluation

AFLP Variation in Agamospermous and Dioecious Bluegrasses of Western North America

Representativeness assessment of research natural areas on National Forest System lands in Idaho

Contact Info

Product

Resources

About