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- W2273399375 abstract "PREMISE OF THE STUDY: The persistence of rare and endangered plant species may depend on the distance pollinators travel when dispersing pollen. Pollinations between adjacent plants, which are often genetically similar, can decrease seed set, germination, and/or progeny vigor due to shared S ‐alleles or inbreeding depression. Interpopulation pollen dispersal is often suggested as a management tool to increase genetic diversity; however, long‐distance pollinations also have the potential to decrease fitness. METHODS: We performed experimental hand pollinations in the field and germination experiments in a growth chamber to determine the effect of intrapopulation pollination distance (1 m, 10 m, and 100 m) on seed set, seed germination, progeny growth, and progeny reproduction in Phlox hirsuta . In addition, we included interpopulation pollinations (6740 m) to determine whether artificial gene flow is a viable management option for this endangered species. KEY RESULTS: Although pollination distance did not affect the number of healthy seeds produced or the likelihood of radicle emergence, it did significantly affect the ability of germinating seeds to successfully produce cotyledons. Outbreeding depression was observed during seed germination and early seedling development. Seedlings resulting from interpopulation pollinations developed more slowly and were less likely to survive to produce cotyledons than seedlings resulting from all three intrapopulation pollination distances. CONCLUSIONS: Our results suggest that the success of P. hirsuta does not depend on the distance pollinators travel within populations and that conservation strategies that involve transporting genes between populations can be counterproductive." @default.
- W2273399375 created "2016-06-24" @default.
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- W2273399375 creator A5053874974 @default.
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- W2273399375 date "2015-10-01" @default.
- W2273399375 modified "2023-09-26" @default.
- W2273399375 title "Fitness consequences of short- and long-distance pollinations in<i>Phlox hirsuta</i>, an endangered species" @default.
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- W2273399375 doi "https://doi.org/10.3732/ajb.1500270" @default.
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