Fine-scale initiation of non-native Robinia pseudoacacia riparian forests along the Chikumagawa River in central Japan

Kurokochi, Hiroyuki; Hogetsu, Taizo

doi:10.5141/ecoenv.2014.003

Cited by 12 publications

(11 citation statements)

References 30 publications

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“…In Japan, both clonal and sexual reproduction have been found to promote the spread and invasion of black locust (Kurokochi & Hogetsu, 2014). Sexual regime is likely to influence invasiveness and a shift in the mating system has already been observed between ranges for several invasive species (Barrett, Colautti, & Eckert, 2008;Petanidou et al, 2012;Rambuda & Johnson, 2004).…”

Section: The Role Of Clonality In Shaping Genetic Diversity In Europementioning

confidence: 99%

A few north Appalachian populations are the source of European black locust

Bouteiller

Verdu

Aikio

et al. 2019

Ecology and Evolution

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The role of evolution in biological invasion studies is often overlooked. In order to evaluate the evolutionary mechanisms behind invasiveness, it is crucial to identify the source populations of the introduction. Studies in population genetics were carried out on Robinia pseudoacacia L., a North American tree which is now one of the worst invasive tree species in Europe. We realized large‐scale sampling in both the invasive and native ranges: 63 populations were sampled and 818 individuals were genotyped using 113 SNPs. We identified clonal genotypes in each population and analyzed between and within range population structure, and then, we compared genetic diversity between ranges, enlarging the number of SNPs to mitigate the ascertainment bias. First, we demonstrated that European black locust was introduced from just a limited number of populations located in the Appalachian Mountains, which is in agreement with the historical documents briefly reviewed in this study. Within America, population structure reflected the effects of long‐term processes, whereas in Europe it was largely impacted by human activities. Second, we showed that there is a genetic bottleneck between the ranges with a decrease in allelic richness and total number of alleles in Europe. Lastly, we found more clonality within European populations. Black locust became invasive in Europe despite being introduced from a reduced part of its native distribution. Our results suggest that human activity, such as breeding programs in Europe and the seed trade throughout the introduced range, had a major role in promoting invasion; therefore, the introduction of the missing American genetic cluster to Europe should be avoided.

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Section: The Role Of Clonality In Shaping Genetic Diversity In Europementioning

confidence: 99%

A few north Appalachian populations are the source of European black locust

Bouteiller

Verdu

Aikio

et al. 2019

Ecology and Evolution

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“…The values of F IS were significantly greater than zero at all sites (Table 1). Because a positive value of F IS is associated with homozygote excess, mating between relatives within sites may affect these significant deviations, which is similar to that in Robinia psedudoacacia, an invasive tree species in Japan (Kurokochi and Hogetsu 2014). Or, it is also possible that F IS values at the site level are generated by there being gene frequency differences among patches due to the Wahlund effect, which could give rise to F IS values of the magnitude observed.…”

Section: Genetic Diversity For Each Site and Differentiation Among Sitesmentioning

confidence: 84%

“…Nuclear microsatellite (nSSR) markers with high polymorphism can contribute to the analysis of parenthood, kinship, and population differentiation (Kurokochi and Hogetsu 2014). The capability of asexual reproduction of woody species via adventitious roots could form large genets with a lot of ramets (Gyokusen et al 1991, Kowarik 1995, Ogawa and Hukusima 1996, Kurokochi et al 2010, and genets can be readily detected with high polymorphism nuclear DNA markers (Jung et al 2009, Kurokochi et al 2010).…”

Section: Site Patch and Sample Collectionmentioning

confidence: 99%

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Expansion of an invasive species, Ailanthus altissima, at a regional scale in Japan

Chuman¹,

Kurokochi²,

Saito³

et al. 2015

J. Ecol. Environ.

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Ailanthus altissima, which is recognized as an invasive tree in the Western world, has been widely observed in Japan. To investigate how A. altissima expanded within-population and to new populations within a region, 446 A. altissima trees were sampled from three separate sites (A, B, and C) including 35 distantly positioned patches, with three chloroplast DNA markers and nine nuclear microsatellite markers. We detected 2, 2, and 3 chloroplast haplotypes in sites A, B, and C, respectively. In addition, 271, 40, and 41 nuclear genotypes were detected in sites A, B, and C, respectively. The clonal richness value was 0.85, 0.78, and 0.53 in sites A, B, and C, respectively. Most trees with the same genotypes were distributed in the same patch, indicating that range expansion by asexual reproduction was limited to a maximum of 45 meters. According to autocorrelation analysis, the extent of nonrandom spatial genetic structure was approximately 0-2 km in sites A and C. KINGROUP analyses showed that 812, 74, and 111 nuclear genotype pairs were detected to have kinship in sites A, B, and C, respectively. Most nuclear genotype pairs were detected within the same patches or sites. These results indicate that the number of A. altissima trees gradually increased from seeds, some of which were produced by trees within sites, meaning that this species could regenerate naturally. This shows the need for the future management of A. altissima as an invasive species in Japan.

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“…However, because R. pseudoacacia can grow rapidly and expand invasively by both asexual and sexual reproduction, its escape from planted areas is a concern in many parts of the world (Von Holle et al 2006;Vasilopoulos et al 2007;Castro-Diez et al 2009;Kleinbauer et al 2010). Although this species was introduced as an ornamental and erosion-control tree approximately 100 years ago in Japan (Uehara 1959;Maekawa and Nakagoshi 1997;Yamada and Masaka 2007), it has spread in various locations (Maekawa and Nakagoshi 1997;Sakio 2003) and is thought to be difficult to eradicate completely because of its active reproduction and regeneration (Kurokochi 2012a;Kurokochi and Hogetsu 2014).…”

Section: Introductionmentioning

confidence: 98%

Invasive Tree Species Robinia pseudoacacia: A Potential Biomass Resource in Nagano Prefecture, Japan

Kurokochi

Toyama

2014

Small-scale Forestry

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The introduced tree species, Robinia pseudoacacia (black locust), has spread extensively in many countries. Because of its active regeneration and rapid initial growth, R. pseudoacacia has not been successfully eradicated despite many efforts. To manage this species, developing information on the growth of R. pseudoacacia as a biomass resource is desirable, and this will motivate logging and could contribute to the extermination or sustainable use of this species. In the present study, the stand volume and growth of R. pseudoacacia forests in riverbeds along the Chikumagawa River in Nagano Prefecture in Japan were examined by tree ring and stem analyses. Seven plots were established in R. pseudoacacia riparian forests of varying ages, and 611 measurements of diameter at breast height and 386 measurements of tree height were made. Stand volumes, which were estimated using equations of stem volume curve based on the results of stem analysis of 47 sample trees, were almost the same as or higher than those of native broadleaf forests in Japan. Stand volumes continued to increase for more than 20 years. Current annual increments of four plots (aged 13-22 years) indicated that it could take\5 years after regeneration for the annual increment of R. pseudoacacia forests to reach a maximum level. Growth of R. pseudoacacia was comparable to or faster than native broadleaved species in Japan, showing the possibility of short rotation harvesting.H. Kurokochi and K. Toyama contributed equally to this study.

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Fine-scale initiation of non-native Robinia pseudoacacia riparian forests along the Chikumagawa River in central Japan

Cited by 12 publications

References 30 publications

A few north Appalachian populations are the source of European black locust

A few north Appalachian populations are the source of European black locust

Expansion of an invasive species, Ailanthus altissima, at a regional scale in Japan

Invasive Tree Species Robinia pseudoacacia: A Potential Biomass Resource in Nagano Prefecture, Japan

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