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Floral trait variation in callus-derived clones of the woody plant Hibiscus syriacus 'Nanpa'.

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Název: Floral trait variation in callus-derived clones of the woody plant Hibiscus syriacus 'Nanpa'.
Autoři: Son, Ji-Hi1 (AUTHOR), Sun, Hyeon-Jin2 (AUTHOR) sunhj89@jejunu.ac.kr, Kang, Hong-Gyu2 (AUTHOR), Lee, Hyo-Yeon1,2 (AUTHOR) hyoyeon@jejunu.ac.kr
Zdroj: Plant Biotechnology Reports. Dec2025, Vol. 19 Issue 6, p849-862. 14p.
Témata: *PLANT tissue culture, *FLORAL morphology, *HIBISCUS, *PHENOTYPIC plasticity, *MORPHOLOGY, *CLONE cells, *GENETIC engineering
Abstrakt: Plant tissue culture induces a broad spectrum of genetic and epigenetic changes collectively known as somaclonal variation, which can be a valuable tool in plant breeding. This study aimed to investigate mutation patterns in a clonal plant population of Hibiscus syriacus 'Nanpa' by evaluating floral traits. A total of 35 clonal plants (hereafter referred to as the clonal population) were regenerated from leaf explants cultured on modified Murashige and Skoog (MS) medium. Twelve floral traits were analyzed, including floral organ traits [(epicalyx number, calyx number, stamen-petal intermediate (SPI) number, and petal type)], corolla type (aestivation, twisted aestivation shape, corolla asymmetry, and corolla shape), quantitative traits (petal length, petal width, and corolla diameter), and petal color. Somaclonal variants were observed in 29 out of 35 clones (82.86%), exhibiting statistically significant differences in floral organs, corolla morphology, and petal color compared to the mother plant. Among the quantitative traits, corolla diameter showed the highest variation rate (45.7%). Phenotypic evaluation revealed that petal aestivation patterns in H. syriacus can be influenced by tissue culture conditions. Furthermore, stable alterations in petal color, such as the emergence of purple variants, were identified as heritable somaclonal mutations likely caused by genetic changes. [ABSTRACT FROM AUTHOR]
Databáze: Academic Search Index
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Abstrakt:Plant tissue culture induces a broad spectrum of genetic and epigenetic changes collectively known as somaclonal variation, which can be a valuable tool in plant breeding. This study aimed to investigate mutation patterns in a clonal plant population of Hibiscus syriacus 'Nanpa' by evaluating floral traits. A total of 35 clonal plants (hereafter referred to as the clonal population) were regenerated from leaf explants cultured on modified Murashige and Skoog (MS) medium. Twelve floral traits were analyzed, including floral organ traits [(epicalyx number, calyx number, stamen-petal intermediate (SPI) number, and petal type)], corolla type (aestivation, twisted aestivation shape, corolla asymmetry, and corolla shape), quantitative traits (petal length, petal width, and corolla diameter), and petal color. Somaclonal variants were observed in 29 out of 35 clones (82.86%), exhibiting statistically significant differences in floral organs, corolla morphology, and petal color compared to the mother plant. Among the quantitative traits, corolla diameter showed the highest variation rate (45.7%). Phenotypic evaluation revealed that petal aestivation patterns in H. syriacus can be influenced by tissue culture conditions. Furthermore, stable alterations in petal color, such as the emergence of purple variants, were identified as heritable somaclonal mutations likely caused by genetic changes. [ABSTRACT FROM AUTHOR]
ISSN:18635466
DOI:10.1007/s11816-025-01011-w