<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>We investigated the clonal structure, self-incompatibility, and number of seeds per fruit in <italic>Camellia rusticana</italic>, a Japanese endemic species, in comparison to the closely related <italic>C. japonica</italic>. Clonal propagation was more vigorous in <italic>C. rusticana</italic> than in <italic>C. japonica</italic> and the clonal structure of <italic>C. rusticana</italic> varied among populations. <italic>C. rusticana</italic> can maintain genets for extended periods, even in harsh environments such as high-altitude areas with considerable snow accumulation, because even a single surviving genet can propagate clonally. However, sexual reproduction (<italic>i.e.</italic>, reproduction by seed) is advantageous for dispersal to distant suitable habitats. An artificial crossing test revealed high self-incompatibility in <italic>C. rusticana</italic>, as observed in <italic>C. japonica</italic>. In addition, the number of seeds per fruit was lower in <italic>C. rusticana</italic> than in <italic>C. japonica</italic>. Self-incompatibility in <italic>C. rusticana</italic> may play a role in production of high-quality seed, despite low seed production.</p>
</abstract>

We investigated the clonal structure, self-incompatibility, and number of seeds per fruit in Camellia rusticana, a Japanese endemic species, in comparison to the closely related C. japonica. Clonal propagation was more vigorous in C. rusticana than in C. japonica and the clonal structure of C. rusticana varied among populations. C. rusticana can maintain genets for extended periods, even in harsh environments such as high-altitude areas with considerable snow accumulation, because even a single surviving genet can propagate clonally. However, sexual reproduction (i.e., reproduction by seed) is advantageous for dispersal to distant suitable habitats. An artificial crossing test revealed high self-incompatibility in C. rusticana, as observed in C. japonica. In addition, the number of seeds per fruit was lower in C. rusticana than in C. japonica. Self-incompatibility in C. rusticana may play a role in production of high-quality seed, despite low seed production.

Investigation of Clonal Structure and Self-incompatibility in Japanese Endemic Snow Camellia (<italic>Camellia rusticana</italic>)

Silvae Genetica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Investigation of Clonal Structure and Self-incompatibility in Japanese Endemic Snow Camellia ()

We investigated the clonal structure, self-incompatibility, and number of seeds per fruit in Camellia rusticana, a Japanese endemic species, in comparison to...

Investigation of Clonal Structure and Self-incompatibility in Japanese Endemic Snow Camellia (Camellia rusticana)

Publié en ligne: 23 août 2021

Pages: 137 - 144

DOI: https://doi.org/10.2478/sg-2021-0011

Mots clés
Camellia japonica, Camellia rusticana, self-incompatibility, microsatellite

© 2020 Hiroki Kohama et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Investigation of Clonal Structure and Self-incompatibility in Japanese Endemic Snow Camellia (Camellia rusticana)

Publié en ligne: 23 août 2021

Pages: 137 - 144

DOI: https://doi.org/10.2478/sg-2021-0011

Mots clésCamellia japonica, Camellia rusticana, self-incompatibility, microsatellite

© 2020 Hiroki Kohama et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
Camellia japonica, Camellia rusticana, self-incompatibility, microsatellite