The Use of Non-Local Leucanthemum Vulgare Agg. Seeds in the Course of Restoration Measures Cannot be Detected Several Years After Their Application

Müller, C. M. and Gemeinholzer, B. and Reiker, J. and Wissemann, V. (2024) The Use of Non-Local Leucanthemum Vulgare Agg. Seeds in the Course of Restoration Measures Cannot be Detected Several Years After Their Application. ACTA BOTANICA HUNGARICA, 66 (3-4). pp. 251-270. ISSN 0236-6495

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Abstract

Ecological restoration requires large-scale reintroductions of plants, but their genetic basis is a controversial issue. Formerly, non-local seed sourcing of naturally occurring herbaceous species was common practice. Here we test whether the genetic pattern of the earlier introduction of non-local seeds of Leucanthemum vulgare agg. (ox-eye daisy) can still be detected several years after the application and whether it differs from that of the regional gene pool. We collected leaf material of the ox-eye daisy in Central Germany on sites of indigenous populations (I) and those formerly restored with non-local seed sources (R). Genome sizes and population genetic pattern (AFLP) were analysed. Genome size estimates of most of the individuals studied suggest, that most ox-eye daisies in the region have similar genome sizes regardless of their origin, while individuals from two indigenous populations from the most northwestern part of the study area had lower 1C values. All populations were genetically diverse and the former use of non-local geno-types of the species could not be detected up to more than 8 years after the establishment of the populations. The results shows that a recommendation for restoration purposes is unequivocal, it can only be concluded that it will be best to use seeds that are local and/or similar to the sites intended for sowing.

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