id:"swepub:oai:lup.lub.lu.se:c30aae91-64ee-4dbd-83da-d9d6e17aae90"
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| Fältnamn | Indikatorer | Metadata |
|---|---|---|
| 000 | 02915naa a2200289 4500 | |
| 001 | oai:lup.lub.lu.se:c30aae91-64ee-4dbd-83da-d9d6e17aae90 | |
| 003 | SwePub | |
| 008 | 210425s1992 | |||||||||||000 ||eng| | |
| 024 | 7 | a https://lup.lub.lu.se/record/c30aae91-64ee-4dbd-83da-d9d6e17aae902 URI |
| 024 | 7 | a https://doi.org/10.2307/22610722 DOI |
| 040 | a (SwePub)lu | |
| 041 | a engb eng | |
| 042 | 9 SwePub | |
| 072 | 7 | a art2 swepub-publicationtype |
| 072 | 7 | a ref2 swepub-contenttype |
| 100 | 1 | a Molau, U.u University of Gothenburg4 aut |
| 245 | 1 0 | a Reproductive system and population structure in three arctic Saxifraga species |
| 264 | 1 | b JSTOR,c 1992 |
| 520 | a Saxifraga cespitosa, S. tenuis and S. cernua were examined in the Abisko area, N Sweden. Populations of S. cespitosa were gynodioecious. Hermaphrodite individuals showed a high selfing efficiency and low pollen:ovule ratios, consistent with a lower outbreeding rate. Saxifraa tenuis was hermaphrodite with some indication of sexual asymmetry. Pollen:ovule ratios were low, but the ability to set seed by autodeposition was lower in S. tenuis than in S. cespitosa. Saxifraga cernua was androdioecious, with some populations that contained only female-sterile individuals and other populations with both female-sterile and hermaphrodite individuals. The higher production of bulbils by female-sterile individuals, coupled with self-incompatibility in hermaphrodites, suggests a means by which androdioecy may be maintained in S. cernua, in the absence of differences in male reproductive success between gender classes. Although all three species showed significant inter-population differentiation, the morphometric distances between populations were not related to the geographic distances between populations. Most of the total diversity in leaf shape was accounted for by inter-population differentiation in all three species, with <1% of the diversity due to variation within individuals. The mosaic pattern of variation in the three saxifrages is consistent with a scenario of localized founder effect and may still reflect patterns of recruitment after the deglaciation of the study area c8200BP. -from Authors | |
| 650 | 7 | a NATURVETENSKAPx Biologix Ekologi0 (SwePub)106112 hsv//swe |
| 650 | 7 | a NATURAL SCIENCESx Biological Sciencesx Ecology0 (SwePub)106112 hsv//eng |
| 700 | 1 | a Prentice, Honor Cu Uppsala University,Lund University,Lunds universitet,Biodiversitet,Biologiska institutionen,Naturvetenskapliga fakulteten,Biodiversity,Department of Biology,Faculty of Science4 aut0 (Swepub:lu)sysb-hpr |
| 710 | 2 | a University of Gothenburgb Biodiversitet4 org |
| 773 | 0 | t Journal of Ecologyd : JSTORg 80:1, s. 149-161q 80:1<149-161x 0022-0477 |
| 856 | 4 | u http://dx.doi.org/10.2307/2261072y FULLTEXT |
| 856 | 4 8 | u https://lup.lub.lu.se/record/c30aae91-64ee-4dbd-83da-d9d6e17aae90 |
| 856 | 4 8 | u https://doi.org/10.2307/2261072 |
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