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In vitro induction of tetraploids and their phenotypic and transcriptome analysis in Glehnia littoralis.
Zhang, Xin; Zheng, Ziyu; Wang, Jing; Li, Yuwen; Gao, Yan; Li, Lixia; Pang, Yujuan; Bian, Fuhua.
Afiliación
  • Zhang X; College of Life Science, Yantai University, Yantai, Shandong, 264005, China.
  • Zheng Z; College of Life Science, Yantai University, Yantai, Shandong, 264005, China.
  • Wang J; College of Life Science, Yantai University, Yantai, Shandong, 264005, China.
  • Li Y; College of Life Science, Yantai University, Yantai, Shandong, 264005, China.
  • Gao Y; Kunyushan Forest Farm, Yantai, Shandong, 264112, China.
  • Li L; College of Life Science, Yantai University, Yantai, Shandong, 264005, China.
  • Pang Y; College of Life Science, Yantai University, Yantai, Shandong, 264005, China.
  • Bian F; College of Life Science, Yantai University, Yantai, Shandong, 264005, China. fh_bian@163.com.
BMC Plant Biol ; 24(1): 439, 2024 May 22.
Article en En | MEDLINE | ID: mdl-38778255
ABSTRACT

BACKGROUND:

Glehnia littoralis is a medicinal and edible plant species having commercial value and has several hundred years of cultivation history. Polyploid breeding is one of the most important and fastest ways to generate novel varieties. To obtain tetraploids of G. littoralis in vitro, colchicine treatment was given to the seeds and then were screened based on morphology, flow cytometry, and root tip pressing assays. Furthermore, transcriptome analysis was performed to identity the differentially expressed genes associated with phenotypic changes in tetraploid G. littoralis.

RESULTS:

The results showed that 0.05% (w/v) colchicine treatment for 48 h was effective in inducing tetraploids in G. littoralis. The tetraploid G. littoralis (2n = 4x = 44) was superior in leaf area, leaf thickness, petiole diameter, SPAD value (Chl SPAD), stomatal size, epidermal tissues thickness, palisade tissues thickness, and spongy tissues thickness to the diploid ones, while the stomatal density of tetraploids was significantly lower. Transcriptome sequencing revealed, a total of 1336 differentially expressed genes (DEGs) between tetraploids and diploids. Chromosome doubling may lead to DNA content change and gene dosage effect, which directly affects changes in quantitative traits, with changes such as increased chlorophyll content, larger stomata and thicker tissue of leaves. Several up-regulated DEGs were found related to growth and development in tetraploid G. littoralis such as CKI, PPDK, hisD and MDP1. KEGG pathway enrichment analyses showed that most of DEGs were enriched in metabolic pathways.

CONCLUSIONS:

This is the first report of the successful induction of tetraploids in G. littoralis. The information presented in this study facilitate breeding programs and molecular breeding of G. littoralis varieties.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Fenotipo / Perfilación de la Expresión Génica / Tetraploidía Idioma: En Revista: BMC Plant Biol Asunto de la revista: BOTANICA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Fenotipo / Perfilación de la Expresión Génica / Tetraploidía Idioma: En Revista: BMC Plant Biol Asunto de la revista: BOTANICA Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido