Regeneration of Robinia pseudoacacia riparian forests after clear-cutting along the Chikumagawa River in Japan

Kurokochi, Hiroyuki; Toyama, Keisuke; Hogetsu, Taizo

doi:10.1007/s11258-010-9735-8

Cited by 35 publications

(35 citation statements)

References 17 publications

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“…In our previous study, various sizes of R. pseudoacacia genets were found to have four nuclear SSR markers (Kurokochi et al 2010). This result supported the fine-scale role of asexual reproduction in the formation of R. pseudoacacia riparian forests; however, the extent to which sexual reproduction contributes has yet to be determined.…”

Section: Study Site and Sample Collectionsupporting

confidence: 57%

“…We demonstrated that, within several years of clear-cutting activity, most R. pseudoacacia trees became established through asexual reproduction. In addition, we observed that some R. pseudoacacia trees regenerated asexually around a fallen R. pseudoacacia tree (Kurokochi et al 2010). Our results indicate that an established R. pseudoacacia tree of a certain nuclear genotype could maintain its genotype in the forest.…”

Section: Study Site and Sample Collectionmentioning

confidence: 76%

“…After the establishment of R. pseudoacacia forests, trees appear to reproduce asexually via adventitious buds sprouting on tree stumps and horizontal roots (Boring and Swank 1984, Jung et al 2009, Kurokochi et al 2010). However, evidence of sexual reproduction within forests has also been reported.…”

Section: Study Site and Sample Collectionmentioning

confidence: 99%

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

Kurokochi¹,

Hogetsu²

2014

J. Ecol. Environ.

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Robinia pseudoacacia has become invasively naturalized in Japan. We investigated the role of sexual reproduction in the development of R. pseudoacacia riparian forests along the Chikumagawa River in Japan, by using five chloroplast (cpSSR) and seven nuclear (nSSR) markers. We identified eight chloroplast haplotypes and 147 nuclear genotypes from 619 R. pseudoacacia trees sampled in three plots (Plots A, B, and C) and along two line transects (Lines D and E). CpSSR analyses showed that multiple maternal lines were distributed along the river, and that some haplotypes from different populations overlapped. In addition, while Plots A and B were separated by a short distance, only these two plots exhibited genetic differentiation in the haplotypes. In the nSSR analysis, all pairwise F ST values among the three plots were significantly different from zero. Kinship analysis based on nSSR markers revealed that kinship connected many individuals to another individual from the same plot. These results indicate that seed dispersal near to mother trees contributes to the fine-scale genetic structure of R. pseudoacacia riparian forests. Our results indicate that sexual reproduction, in addition to asexual reproduction, is a major contributor to the fine-scale formation of R. pseudoacacia forests.

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Section: Study Site and Sample Collectionsupporting

confidence: 57%

Section: Study Site and Sample Collectionmentioning

confidence: 76%

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

Kurokochi¹,

Hogetsu²

2014

J. Ecol. Environ.

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“…This finding is consistent with our observations. Also, in case of Robinia pseudoacacia which reproduces both sexually and asexually (Kowarik 1996, Jung et al 2009, Kurokochi et al 2010, some studies have shown that new horizontal roots are supplied with photosynthates from the mother plant or ramet for a few years only and that resource translocation between neighboring ramets within the same clone ceases after several years (Jung et al 2009). This might explain the advantage of root sprouts in the initial period of their development.…”

Section: Discussionmentioning

confidence: 99%

Analysis of growth of recruits of natural regeneration of Sorbus torminalis (L.) Crantz - a rare European forest tree species

Bednorz¹,

Nowińska²

2018

iForest

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We compared growth and survival of wild service tree (Sorbus torminalis [L.] Crantz) recruits of different origin (generative: seedlings; vegetative: root suckers) established in a fenced plot at the Forest District of Krzyz (northwestern Poland). Total height, annual growth of the dominant shoot, stem diameter at root collar, number of first-order branches, and mortality were measured every year over the period 2011-2015 (5 years). In 2011, a total of 382 multi-age recruits originated both from seeds (212) and root suckers (170) were recorded. Five-year mortality was higher in the generative progeny (12.3% -only youngest seedlings) as compared with vegetative recruits (2.9%). The growth rate of individuals markedly increased with height as absolute values, but slightly decreased in terms of relative growth. Statistical analysis revealed that the effect of the recruit origin on growth was noticeably weaker than that of age, defined in terms of development (height) classes. The origin of recruits had a major effect on the annual growth of the dominant shoots and a minor (though significant) effect on stem diameter and the number of first-order branches. Overall, the analysis of growth rate showed that generative recruits grow faster than the vegetative ones. Our results highlight the importance of stimulating the generative regeneration and protecting seedlings as a conservation strategy for Sorbus torminalis.

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“…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). ABI 3130 automated DNA sequencer (Applied Biosystems, Foster City, CA, USA), and their fragment sizes were analyzed with a GeneMapper software (Applied Biosystems).…”

Section: Site Patch and Sample Collectionmentioning

confidence: 99%

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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Regeneration of Robinia pseudoacacia riparian forests after clear-cutting along the Chikumagawa River in Japan

Cited by 35 publications

References 17 publications

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

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

Analysis of growth of recruits of natural regeneration of Sorbus torminalis (L.) Crantz - a rare European forest tree species

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

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