Structural equation modelling analysis of evolutionary and ecological patterns in Australian Banksia
Evolutionary history of species, their geographic ranges, ecological ranges, genetic diversity, and resistance to pathogen infection, have been viewed as being mutually linked through a complex network of interactions. Previous studies have described simple correlations between pairs of these factor...
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| Format: | Journal Article |
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Springer
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/38258 |
| _version_ | 1848755271560593408 |
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| author | He, Tianhua |
| author_facet | He, Tianhua |
| author_sort | He, Tianhua |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Evolutionary history of species, their geographic ranges, ecological ranges, genetic diversity, and resistance to pathogen infection, have been viewed as being mutually linked through a complex network of interactions. Previous studies have described simple correlations between pairs of these factors, while rarely separated the direct effects among multiple interacting factors. This study was to separate the effect of multiple interacting factors, to reveal the strength of the interactions among these factors, and to explore the mechanisms underlying the ecological and evolutionary processes shaping the geographic range, genetic diversity and fitness of species. I assembled comparative data on evolutionary history, geographic range, ecological range, genetic diversity, and resistance to pathogen infection for thirteen Banksia species from Australia. I used structural equation modelling to test multivariate hypotheses involving evolutionary history, geographic range, genetic diversity and fitness. Key results are: (1) Species with longer evolutionary times tend to occupy larger geographic ranges; (2) higher genetic diversity is directly associated with longer flowering duration in Banksia; and (3) species with higher genotypic diversity have higher level of resistance to infection caused by the pathogen Phytophthora cinnamomi, whereas heterozygosity has the opposite relationship with capacity of resistance to the infections caused by this pathogen. |
| first_indexed | 2025-11-14T08:53:39Z |
| format | Journal Article |
| id | curtin-20.500.11937-38258 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:53:39Z |
| publishDate | 2013 |
| publisher | Springer |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-382582017-09-13T14:12:15Z Structural equation modelling analysis of evolutionary and ecological patterns in Australian Banksia He, Tianhua Path analysis Pathogen resistance Geographic ranges Flowering duration Genetic diversity Evolutionary history Evolutionary history of species, their geographic ranges, ecological ranges, genetic diversity, and resistance to pathogen infection, have been viewed as being mutually linked through a complex network of interactions. Previous studies have described simple correlations between pairs of these factors, while rarely separated the direct effects among multiple interacting factors. This study was to separate the effect of multiple interacting factors, to reveal the strength of the interactions among these factors, and to explore the mechanisms underlying the ecological and evolutionary processes shaping the geographic range, genetic diversity and fitness of species. I assembled comparative data on evolutionary history, geographic range, ecological range, genetic diversity, and resistance to pathogen infection for thirteen Banksia species from Australia. I used structural equation modelling to test multivariate hypotheses involving evolutionary history, geographic range, genetic diversity and fitness. Key results are: (1) Species with longer evolutionary times tend to occupy larger geographic ranges; (2) higher genetic diversity is directly associated with longer flowering duration in Banksia; and (3) species with higher genotypic diversity have higher level of resistance to infection caused by the pathogen Phytophthora cinnamomi, whereas heterozygosity has the opposite relationship with capacity of resistance to the infections caused by this pathogen. 2013 Journal Article http://hdl.handle.net/20.500.11937/38258 10.1007/s10144-013-0376-3 Springer fulltext |
| spellingShingle | Path analysis Pathogen resistance Geographic ranges Flowering duration Genetic diversity Evolutionary history He, Tianhua Structural equation modelling analysis of evolutionary and ecological patterns in Australian Banksia |
| title | Structural equation modelling analysis of evolutionary and ecological patterns in Australian Banksia |
| title_full | Structural equation modelling analysis of evolutionary and ecological patterns in Australian Banksia |
| title_fullStr | Structural equation modelling analysis of evolutionary and ecological patterns in Australian Banksia |
| title_full_unstemmed | Structural equation modelling analysis of evolutionary and ecological patterns in Australian Banksia |
| title_short | Structural equation modelling analysis of evolutionary and ecological patterns in Australian Banksia |
| title_sort | structural equation modelling analysis of evolutionary and ecological patterns in australian banksia |
| topic | Path analysis Pathogen resistance Geographic ranges Flowering duration Genetic diversity Evolutionary history |
| url | http://hdl.handle.net/20.500.11937/38258 |