担当区分：筆頭著者,　責任著者   記述言語：日本語  

DOI： 10.24480/bsj-review.14b6.00247

記述言語：英語   掲載種別：研究論文（学術雑誌）  

In clonal plant populations, a number of genetically identical ramets form a genet. While coexisting ramets potentially perform independently, their behaviours not only depend on ages and sizes but are also constrained by genetic background. In this study, genet dynamics and its variability among neighbouring genets were investigated based on the ramet demography of each genet in Convallaria keiskei. Genet dynamics were first formulated as a matrix model with the two components of clonal growth (clonal reproduction) and survival-transitions between ramet size classes. Then, a statistical estimation of the matrix elements was established using three datasets: aboveground demographic censuses, belowground directional rhizome connections and genetic identification of ramets. Finally, genet growth rates reflecting both the changes of clonal growth and ramet size growth were estimated and compared for fundamental demographic elements among genets. Over three years of aboveground annual censuses of a 28 × 2 m plot, 2021 ramets were identified as belonging to 28 genotypes. Belowground excavation detected 515 clonal fragments. Genet growth rate of three dominant genets varied with medians of 1.13, 1.02 and 1.05; 95% credible intervals of the posterior distributions did not overlap between the genet with the largest median and the others. The variation was caused primarily by differences in clonal growth rather than survival-transitions between size classes. Clonal growth by branching was rarer than at the tips but contributed to the maintenance of the genet. Therefore, both clonal growth frequencies and connecting patterns of ramets caused the variation of genet dynamics and established genets persist for a long time through the positive growth rates, which would contribute to maintain a population. We also conclude that fundamental demographic elements relating to clonal growth traits (the features of individual genets) strongly impact genet dynamics.

DOI： 10.1111/oik.09367

Scopus

その他リンク： https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85143890883&origin=inward

記述言語：英語   掲載種別：研究論文（学術雑誌）   参加形態：共同（副担当）  

DOI： https://doi.org/10.4236/jacen.2022.113014

記述言語：日本語   掲載種別：研究論文（大学，研究機関等紀要）   参加形態：共同（副担当）  

記述言語：日本語   掲載種別：研究論文（大学，研究機関等紀要）   参加形態：共同（主担当）  

出願人：学校法人立命館

出願番号：2018-100369  出願日：2018年5月

公開番号：2019-201605  公開日：2019年11月

出願人：学校法人立命館, 株式会社熊谷組

出願番号：2017-06503  出願日：2017年3月

公開番号：2018-166418  公開日：2018年11月

出願人：学校法人立命館, 新日鐵住金株式会社

出願番号：2017-042822  出願日：2017年3月

公開番号：2018-146434  公開日：2018年9月

受賞区分：出版社・新聞社・財団等の賞 

受賞区分：国内学会・会議・シンポジウム等の賞 

開催地：横浜  

記述言語：日本語  

記述言語：日本語   会議種別：口頭発表（招待・特別）  

開催地：千葉幕張メッセ  

記述言語：日本語   会議種別：口頭発表（一般）  

記述言語：日本語   会議種別：口頭発表（一般）