Local genetic population structure in an endangered plant species, Silene tatarica (Caryophyllaceae)
Genetic substructuring in plant populations may evolve as a consequence of sampling events that occur when the population is founded or regenerated, or if gene dispersal by pollen and seeds is restricted within a population. Silene tatarica is an endangered, perennial plant species growing along per...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.494.6650 2023-05-15T17:42:37+02:00 Local genetic population structure in an endangered plant species, Silene tatarica (Caryophyllaceae) N Tero J Aspi The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.494.6650 http://cc.oulu.fi/~jaspi/plantpopgen/Silene_tatarica_Heredity2005.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.494.6650 http://cc.oulu.fi/~jaspi/plantpopgen/Silene_tatarica_Heredity2005.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://cc.oulu.fi/~jaspi/plantpopgen/Silene_tatarica_Heredity2005.pdf AFLP Sp statistics dispersal distance neighbourhood parentage analysis spatial autocorrelation text ftciteseerx 2016-01-08T08:42:20Z Genetic substructuring in plant populations may evolve as a consequence of sampling events that occur when the population is founded or regenerated, or if gene dispersal by pollen and seeds is restricted within a population. Silene tatarica is an endangered, perennial plant species growing along periodically disturbed riverbanks in northern Finland. We investigated the mechanism behind the microspatial genetic structure of S. tatarica in four subpopulations using amplified fragment length polymorphism markers. Spatial autocorrelation revealed clear spatial genetic structure in each subpopulation, even though the pattern diminished in older subpopulations. Parentage analysis in an isolated island subpopulation indicated a very low level of selfing and avoidance of breeding between close relatives. The mean estimated pollen dispersal distance (24.10 m; SD 10.5) was significantly longer and the mean seed dispersal distance (9.07 m; SD 9.23) was considerably shorter than the mean distance between the individuals (19.20 m; SD 13.80). The estimated indirect and direct estimates of neighbourhood sizes in this subpopulation were very similar, 32.1 and 37.6, respectively. Our results suggested that the local spatial genetic structure in S. tatarica was attributed merely to the isolation-by-distance process rather than founder effect, and despite free pollen movement across population, restricted seed dispersal maintains local genetic structure in this species. Heredity advance online publication, 2 March 2005; doi:10.1038/sj.hdy.6800642 Text Northern Finland Silene tatarica Unknown |
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English |
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AFLP Sp statistics dispersal distance neighbourhood parentage analysis spatial autocorrelation |
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AFLP Sp statistics dispersal distance neighbourhood parentage analysis spatial autocorrelation N Tero J Aspi Local genetic population structure in an endangered plant species, Silene tatarica (Caryophyllaceae) |
topic_facet |
AFLP Sp statistics dispersal distance neighbourhood parentage analysis spatial autocorrelation |
description |
Genetic substructuring in plant populations may evolve as a consequence of sampling events that occur when the population is founded or regenerated, or if gene dispersal by pollen and seeds is restricted within a population. Silene tatarica is an endangered, perennial plant species growing along periodically disturbed riverbanks in northern Finland. We investigated the mechanism behind the microspatial genetic structure of S. tatarica in four subpopulations using amplified fragment length polymorphism markers. Spatial autocorrelation revealed clear spatial genetic structure in each subpopulation, even though the pattern diminished in older subpopulations. Parentage analysis in an isolated island subpopulation indicated a very low level of selfing and avoidance of breeding between close relatives. The mean estimated pollen dispersal distance (24.10 m; SD 10.5) was significantly longer and the mean seed dispersal distance (9.07 m; SD 9.23) was considerably shorter than the mean distance between the individuals (19.20 m; SD 13.80). The estimated indirect and direct estimates of neighbourhood sizes in this subpopulation were very similar, 32.1 and 37.6, respectively. Our results suggested that the local spatial genetic structure in S. tatarica was attributed merely to the isolation-by-distance process rather than founder effect, and despite free pollen movement across population, restricted seed dispersal maintains local genetic structure in this species. Heredity advance online publication, 2 March 2005; doi:10.1038/sj.hdy.6800642 |
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The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
N Tero J Aspi |
author_facet |
N Tero J Aspi |
author_sort |
N Tero |
title |
Local genetic population structure in an endangered plant species, Silene tatarica (Caryophyllaceae) |
title_short |
Local genetic population structure in an endangered plant species, Silene tatarica (Caryophyllaceae) |
title_full |
Local genetic population structure in an endangered plant species, Silene tatarica (Caryophyllaceae) |
title_fullStr |
Local genetic population structure in an endangered plant species, Silene tatarica (Caryophyllaceae) |
title_full_unstemmed |
Local genetic population structure in an endangered plant species, Silene tatarica (Caryophyllaceae) |
title_sort |
local genetic population structure in an endangered plant species, silene tatarica (caryophyllaceae) |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.494.6650 http://cc.oulu.fi/~jaspi/plantpopgen/Silene_tatarica_Heredity2005.pdf |
genre |
Northern Finland Silene tatarica |
genre_facet |
Northern Finland Silene tatarica |
op_source |
http://cc.oulu.fi/~jaspi/plantpopgen/Silene_tatarica_Heredity2005.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.494.6650 http://cc.oulu.fi/~jaspi/plantpopgen/Silene_tatarica_Heredity2005.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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