Reisch, C. and Kaiser, A. J. and Horn, A. and Poschlod, P. (2010) Genetic variation of Mimetes hirtus and Mimetes fimbriifolius (Proteaceae) - a comparative analysis of two closely related fynbos species. PLANT BIOLOGY, 12 (3). pp. 537-544. ISSN 1435-8603,
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We investigated the influence of differing life history traits on the genetic structure of the related species Mimetes fimbriifolius and Mimetes hirtus (Proteaceae), which occur in the South African fynbos. Both species are bird-pollinated and ant-dispersed, but differ in rarity, longevity, ecological strategy and the fragmentation of their distribution area. We used AFLPs to study genetic variation within and between 21 populations of these two species across their distribution range. AFLP analysis revealed significantly higher genetic variation within populations of M. fimbriifolius than within M. hirtus. While M. fimbriifolius clearly lacked any significant genetic differentiation between populations, a distinct geographic pattern was observed for M. hirtus. Differentiation was, however, stronger at the regional (Phi(PT) = 0.57) than at the local scale (Phi(PT) = 0.08). Our results clearly indicate that even closely related species that share the same mode of pollination and seed dispersal can differ in their genetic structure, depending on the magnitude of fragmentation, longevity of individuals and ecological strategy.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | RARE; DIVERSITY; PLANT; CONSERVATION; POPULATIONS; DIFFERENTIATION; FRAGMENTATION; CONSEQUENCES; LANDSCAPE; PATTERNS; Ecology; fragmentation; fynbos; life history traits; population genetics; South Africa |
| Subjects: | 500 Science > 580 Botanical sciences |
| Divisions: | Biology, Preclinical Medicine > Institut für Pflanzenwissenschaften > Lehrstuhl für Ökologie und Naturschutzbiologie (Prof. Dr. Peter Poschlod) |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 03 Aug 2020 05:27 |
| Last Modified: | 03 Aug 2020 05:27 |
| URI: | https://pred.uni-regensburg.de/id/eprint/24797 |
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