Leading-edge populations do not show low genetic diversity or high differentiation in a wind-pollinated tree

被引：22
|
作者：
Shi, Miao-Miao [1 ,2 ]
Chen, Xiao-Yong [1 ]
机构：
[1] E China Normal Univ, Tiantong Natl Observat Stn Forest Ecosyst, Dept Environm Sci, Shanghai 200062, Peoples R China
[2] UFZ, Helmholtz Ctr Environm Res, Dept Community Ecol, D-06120 Halle, Germany
来源：
POPULATION ECOLOGY | 2012年 / 54卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Bottleneck; Castanopsis sclerophylla; Gene flow; Genetic variation; Wind-direction; LONG-DISTANCE DISPERSAL; NUCLEAR MICROSATELLITES; POLLEN DISPERSAL; NORTHERN LIMIT; RANGE; SEED; SIZE; COLONIZATION; CHLOROPLAST; FLOW;
D O I：
10.1007/s10144-012-0332-7
中图分类号：
Q14 [生态学（生物生态学）];
学科分类号：
071012 ; 0713 ;
摘要：
Climate changes can shift species' ranges. Knowledge on genetic variation of the leading-edge populations provides critical information to understand responses and adaptation of plants to projected climate warming. To date, the research into genetic variation of leading-edge populations has been limited, particularly in the role of wind-mediated pollen flow in maintaining high genetic variation. Castanopsis sclerophylla (Fagaceae) is a wind-pollinated and gravity-dispersed tree. In the present study, we used seven polymorphic microsatellites to genotype 482 samples from five leading-edge and 12 non-edge populations. Significant effects of recent population bottleneck events were found in three of the five leading-edge populations, indicating that the leading-edge populations might have been recolonized after the Last Glacial Maximum. Genetic diversity was higher, though not significantly, in leading-edge than in non-edge populations. Relationship between genetic diversity and latitude indicated an increasing trend of genetic diversity towards leading-edge populations. No significant difference in genetic differentiation was found between leading-edge and non-edge populations. The inconsistence with the general predictions by leading-edge colonization model could be explained by high gene flow via pollen grains. Pollen-mediated gene flow could maintain high genetic diversity within and low differentiation among leading-edge populations. In response to climate warming, high genetic variation may provide leading-edge populations raw materials for evolutionary adaptation to future environmental conditions.
引用
收藏
页码：591 / 600
页数：10
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  • [1] Low genetic diversity and fragmentation effects in a wind-pollinated tree, Polylepis multijuga Plige (Rosaceae) in the high Andes
    Natalia Quinteros-Casaverde
    Cesar F. Flores-Negrón
    Dean A. Williams
    [J]. Conservation Genetics, 2012, 13 : 593 - 603
  • [2] Low genetic diversity and fragmentation effects in a wind-pollinated tree, Polylepis multijuga Plige (Rosaceae) in the high Andes
    Quinteros-Casaverde, Natalia
    Flores-Negron, Cesar F.
    Williams, Dean A.
    [J]. CONSERVATION GENETICS, 2012, 13 (02) : 593 - 603
  • [3] ANALYSIS OF NUCLEAR MICROSATELLITES REVEALS LIMITED DIFFERENTIATION BETWEEN COLCHIC AND HYRCANIAN POPULATIONS OF THE WIND-POLLINATED RELICT TREE ZELKOVA CARPINIFOLIA (ULMACEAE)
    Maharramova, Elmira H.
    Safarov, Hajiaga M.
    Kozlowski, Gregor
    Borsch, Thomas
    Muller, Ludo A.
    [J]. AMERICAN JOURNAL OF BOTANY, 2015, 102 (01) : 119 - 128
  • [4] Patterns of Nucleotide Diversity at the Methionine Synthase Locus in Fragmented and Continuous Populations of a Wind-Pollinated Tree, Quercus mongolica var. crispula
    Quang, Nguyen D.
    Ikeda, Sosaku
    Harada, Ko
    [J]. JOURNAL OF HEREDITY, 2009, 100 (06) : 762 - 770
  • [5] Spatial genetic structure in Milicia excelsa (Moraceae) indicates extensive gene dispersal in a low-density wind-pollinated tropical tree
    Bizoux, J. -P.
    Dainou, K.
    Bourland, N.
    Hardy, O. J.
    Heuertz, M.
    Mahy, G.
    Doucet, J. -L.
    [J]. MOLECULAR ECOLOGY, 2009, 18 (21) : 4398 - 4408
  • [6] Isolation affects reproductive success in low-density but not high-density populations of two wind-pollinated Thalictrum species
    Janet C. Steven
    Donald M. Waller
    [J]. Plant Ecology, 2007, 190 : 131 - 141
  • [7] Isolation affects reproductive success in low-density but not high-density populations of two wind-pollinated Thalictrum species
    Steven, Janet C.
    Waller, Donald M.
    [J]. PLANT ECOLOGY, 2007, 190 (01) : 131 - 141
  • [8] Low genetic diversity and high genetic differentiation among severely fragmented populations of the critically endangered tree Talbotiella gentii (Fabaceae)
    Dompreh, D.
    Swaine, M. D.
    Price, A.
    [J]. SOUTHERN FORESTS-A JOURNAL OF FOREST SCIENCE, 2011, 73 (02) : 73 - 80
  • [9] Reproductive and population genetic characteristics of leading-edge and central populations of two temperate forest tree species and implications for range expansion
    Logan, Samuel A.
    Phuekvilai, Prattana
    Sanderson, Roy
    Wolff, Kirsten
    [J]. FOREST ECOLOGY AND MANAGEMENT, 2019, 433 : 475 - 486
  • [10] Isolated populations of a rare alpine plant show high genetic diversity and considerable population differentiation
    Aegisdottir, Hafdis Hanna
    Kuss, Patrick
    Stoecklin, Juerg
    [J]. ANNALS OF BOTANY, 2009, 104 (07) : 1313 - 1322
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