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Open AccessArticle

The Influence of a Seedling Recruitment Strategy and a Clonal Architecture on a Spatial Genetic Structure of a Salvia brachyodon (Lamiaceae) Population

1
Division of Botany, Department of Biology, Faculty of Science, University of Zagreb, HR 10000 Zagreb, Croatia
2
Centre of Excellence for Biodiversity and Molecular Plant Breeding, HR 10000 Zagreb, Croatia
3
Subdepartment of Quantitative Ecology, Department of Biology, Josip Juraj Strossmayer University of Osijek, HR 31000 Osijek, Croatia
4
Multione Ltd., HR 10360 Sesvete, Croatia
5
Department of Seed Science and Technology, Faculty of Agriculture, University of Zagreb, HR 10000 Zagreb, Croatia
*
Author to whom correspondence should be addressed.
Plants 2020, 9(7), 828; https://doi.org/10.3390/plants9070828 (registering DOI)
Received: 17 June 2020 / Revised: 24 June 2020 / Accepted: 26 June 2020 / Published: 30 June 2020
(This article belongs to the Special Issue Applications of DNA Markers in Plant Science)
By performing a high-resolution spatial-genetic analysis of a partially clonal Salvia brachyodon population, we elucidated its clonal architecture and seedling recruitment strategy. The sampling of the entire population was based on a 1 × 1 m grid and each sampled individual was genotyped. Population-genetic statistics were combined with geospatial analyses. On the population level, the presence of both sexual and clonal reproduction and repeated seedling recruitment as the prevailing strategy of new genets establishment were confirmed. On the patch level, a phalanx clonal architecture was detected. A significant negative correlation between patches’ sizes and genotypic richness was observed as young plants were not identified within existing patches of large genets but almost exclusively in surrounding areas. The erosion of the genetic variability of older patches is likely caused by the inter-genet competition and resulting selection or by a random die-off of individual genets accompanied by the absence of new seedlings establishment. This study contributes to our understanding of how clonal architecture and seedling recruitment strategies can shape the spatial-genetic structure of a partially clonal population and lays the foundation for the future research of the influence of the population’s clonal organization on its sexual reproduction. View Full-Text
Keywords: Salvia brachyodon; sage; microsatellites; clonality; clonal architecture; seedling establishment; genet; ramet Salvia brachyodon; sage; microsatellites; clonality; clonal architecture; seedling establishment; genet; ramet
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MDPI and ACS Style

Radosavljević, I.; Antonić, O.; Hruševar, D.; Križan, J.; Satovic, Z.; Turković, D.; Liber, Z. The Influence of a Seedling Recruitment Strategy and a Clonal Architecture on a Spatial Genetic Structure of a Salvia brachyodon (Lamiaceae) Population. Plants 2020, 9, 828.

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