Population Dynamics and Conservation Implications of Decalepis arayalpathra (J. Joseph and V. Chandras.) Venter., a Steno Endemic Species of Western ... View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2015-05-13

AUTHORS

Priyanka Mishra, L. Dinesh Kumar, Amit Kumar, Sivaraman Gokul, Kaliamoorthy Ravikumar, Ashutosh K. Shukla, Velusamy Sundaresan

ABSTRACT

Decalepis arayalpathra, a critically endangered plant species, has a restricted and fragmented population in Southern Western Ghats, India. This study is a first attempt to evaluate genetic diversity and population structure in the nine wild populations of D. arayalpathra based on molecular pattern realized through the marker assays. Principal coordinate analysis (PCoA) and Nei’s unweighted pair-group method with arithmetic average (UPGMA)-based hierarchical clustering of both the marker assays suggest strong genetic clustering between the individuals corresponding to their geographical ranges. Mantel test also corroborates a close genetic proximity between genetic and geographic data (r = 0.389). Population genetic analysis revealed low levels of gene flow [inter-simple sequence repeat (ISSR) = 0.289 and random amplified polymorphic DNA (RAPD) = 0.847] between the populations, in line with high genetic differentiation (Gst = 0.531 with ISSR and 0.440 with RAPD), which was also supported by analysis of molecular variance (AMOVA), that 54 % (ISSR) and 64 % (RAPD) total variation resided within populations. Bayesian model-based STRUCTURE analysis detected three genetic clusters showing the high degree of admixture within population. Based on the findings, such as inbreeding depression and the loss of genetic diversity, suggestions for conservation strategies are provided to preserve the genetic resources of this endangered species. More... »

PAGES

1413-1430

References to SciGraph publications

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  • 1999-01. A new system of comparing PCR primers applied to ISSR fingerprinting of potato cultivars in THEORETICAL AND APPLIED GENETICS
  • 2013-08-04. Population and genetic status of a critically endangered species in Korea, Euchresta japonica (Leguminosae), and their implications for conservation in JOURNAL OF PLANT BIOLOGY
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  • 2011-10-13. STRUCTURE HARVESTER: a website and program for visualizing STRUCTURE output and implementing the Evanno method in CONSERVATION GENETICS RESOURCES
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/s12010-015-1654-7

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    http://dx.doi.org/10.1007/s12010-015-1654-7

    DIMENSIONS

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    30 schema:description Decalepis arayalpathra, a critically endangered plant species, has a restricted and fragmented population in Southern Western Ghats, India. This study is a first attempt to evaluate genetic diversity and population structure in the nine wild populations of D. arayalpathra based on molecular pattern realized through the marker assays. Principal coordinate analysis (PCoA) and Nei’s unweighted pair-group method with arithmetic average (UPGMA)-based hierarchical clustering of both the marker assays suggest strong genetic clustering between the individuals corresponding to their geographical ranges. Mantel test also corroborates a close genetic proximity between genetic and geographic data (r = 0.389). Population genetic analysis revealed low levels of gene flow [inter-simple sequence repeat (ISSR) = 0.289 and random amplified polymorphic DNA (RAPD) = 0.847] between the populations, in line with high genetic differentiation (Gst = 0.531 with ISSR and 0.440 with RAPD), which was also supported by analysis of molecular variance (AMOVA), that 54 % (ISSR) and 64 % (RAPD) total variation resided within populations. Bayesian model-based STRUCTURE analysis detected three genetic clusters showing the high degree of admixture within population. Based on the findings, such as inbreeding depression and the loss of genetic diversity, suggestions for conservation strategies are provided to preserve the genetic resources of this endangered species.
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    37 schema:keywords Bayesian model-based STRUCTURE analysis
    38 Decalepis
    39 Ghats
    40 India
    41 Mantel test
    42 Western Ghats
    43 admixture
    44 analysis
    45 arithmetic average
    46 assays
    47 attempt
    48 average
    49 close genetic proximity
    50 clustering
    51 clusters
    52 conservation implications
    53 conservation strategies
    54 data
    55 degree
    56 depression
    57 differentiation
    58 diversity
    59 dynamics
    60 endemic species
    61 findings
    62 first attempt
    63 flow
    64 fragmented populations
    65 gene flow
    66 genetic analysis
    67 genetic clustering
    68 genetic clusters
    69 genetic differentiation
    70 genetic diversity
    71 genetic proximity
    72 genetic resources
    73 geographic data
    74 geographical range
    75 hierarchical clustering
    76 high degree
    77 high genetic differentiation
    78 implications
    79 inbreeding depression
    80 individuals
    81 levels
    82 lines
    83 loss
    84 low levels
    85 marker assays
    86 method
    87 model-based structure analysis
    88 molecular patterns
    89 molecular variance
    90 pair group method
    91 patterns
    92 plant species
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    96 population structure
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    98 proximity
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    101 southern Western Ghats
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