Research ArticleGENETICS

Large-scale diversification without genetic isolation in nematode symbionts of figs

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Science Advances  15 Jan 2016:
Vol. 2, no. 1, e1501031
DOI: 10.1126/sciadv.1501031

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  • Response to Prabhat Kumar
    Because we uncovered morphological diversification of putative ecotypes, we have speculated ecological opportunity as an obvious explanation for the observed patterns. We do not speculate on the causes of invasion, as we did not directly test hypotheses of those causes. We have also limited our speculation on the success of that invasion given the scope of our results and experimental design. However, we agree that other factors such as release from enemies may have contributed to the success and divergence of fig-associated Pristionchus, and we leave all of the above factors as hypotheses open for future investigation.
    Competing Interests: None declared.
  • RE: Glimpses and attributes of plant invasion management

    It has been mentioned that empty niche hypothesis is the prime factor of invasion across continental islands 1 in nematode symbionts of figs. However, we cannot ignore the interrelationship of other invasion mechanism or attributes like enemy release, resource, etc. Unfilled niche may act only as passenger along for the invasion ride. Similarly invasion is inextricably linked with other environmental threats i.e. climate or land use change across the continents in order to innovate an integrated eco-sustainable management approach in totality 2.

    1. Kleunen, M.V. et al. Global exchange and accumulation of non-native plants. Nature 525, 100-103 (2015)
    2. Rai, P.K. Paradigm of plant invasion: multifaceted review on sustainable management Env. Mon. Assess. 187 (12), 759 (2015)

    Competing Interests: None declared.

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