Allozyme markers suitable for pasture persistence studies in cocksfoot (<i>Dactylis glomerata</i>) cv. Grasslands Wana

Faville, Marty J.; Adam, K. D.; Wedderburn, M. E.

doi:10.1080/00288233.1994.9513050

Cited by 1 publication

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“…In such instances genetic markers can be used to identify individuals and/or estimate the relative proportions of resident and introduced cultivar in the mixture. Allozyme markers have previously been used extensively for that purpose in several pasture species e.g., perennial ryegrass (Sanders et al 1989), cocksfoot, Dactylis glomerata (Faville et al 1994), and white clover, Trifolium repens (Adam et al 1993). Allozyme studies have not been previously reported for browntop.…”

Section: Introductionmentioning

confidence: 99%

Allozyme variation within and between three populations of browntop(Agrostis capillaris)

Faville

Adam

Wedderburn

1995

New Zealand Journal of Agricultural Research

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Allozyme variation in the tetraploid browntop (Agrostis capillaris) cultivar 'Grasslands Muster', and two resident hill country browntop populations was investigated. The aim was to develop a set of genetic markers that would allow this cultivar to be reliably distinguished from the resident populations, enabling persistence of this cultivar in hill country pastures to be monitored following oversowing. Screening of 17 enzyme systems yielded three polymorphic loci: Gpi; Pgm; and Mdh. For Gpi, 12 alleles were found among the three populations sampled, allele frequencies ranging from 0 to 0.245. Pgm showed six alleles, and frequencies ranged from 0 to 0.792. Mdh could only be analysed in terms of phenotype frequencies, and four phenotypes were recognised, with frequencies ranging from 0 to 0.6. Pairwise G-tests and the calculation of geometric distances between the populations on the basis of this data suggested that allele frequencies at the loci Gpi and Pgm differ sufficiently between 'Grasslands Muster' and the resident populations to allow reliable estimates of admixture proportions following oversowing, thus allowing monitoring of persistence in the pasture.1Corresponding author A94070

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Section: Introductionmentioning

confidence: 99%