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Transcriptomic and Physiological Analyses for the Role of Hormones and Sugar in Axillary Bud Development of Wild Strawberry Stolon.
Lan, Genqian; Wu, Mingzhao; Zhang, Qihang; Yuan, Bo; Shi, Guangxin; Zhu, Ni; Zheng, Yibingyue; Cao, Qiang; Qiao, Qin; Zhang, Ticao.
Afiliación
  • Lan G; School of Agriculture, Yunnan University, Kunming 650091, China.
  • Wu M; School of Agriculture, Yunnan University, Kunming 650091, China.
  • Zhang Q; School of Agriculture, Yunnan University, Kunming 650091, China.
  • Yuan B; School of Agriculture, Yunnan University, Kunming 650091, China.
  • Shi G; School of Agriculture, Yunnan University, Kunming 650091, China.
  • Zhu N; School of Agriculture, Yunnan University, Kunming 650091, China.
  • Zheng Y; School of Agriculture, Yunnan University, Kunming 650091, China.
  • Cao Q; College of Horticulture and Landscape, Yunnan Agricultural University, Kunming 650201, China.
  • Qiao Q; College of Horticulture and Landscape, Yunnan Agricultural University, Kunming 650201, China.
  • Zhang T; Key Laboratory of Phytochemistry and Natural Medicines, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
Plants (Basel) ; 13(16)2024 Aug 13.
Article en En | MEDLINE | ID: mdl-39204677
ABSTRACT
Strawberries are mainly propagated by stolons, which can be divided into monopodial and sympodial types. Monopodial stolons consistently produce ramets at each node following the initial single dormant bud, whereas sympodial stolons develop a dormant bud before each ramet. Sympodial stolon encompasses both dormant buds and ramet buds, making it suitable for studying the formation mechanism of different stolon types. In this study, we utilized sympodial stolons from Fragaria nilgerrensis as materials and explored the mechanisms underlying sympodial stolon development through transcriptomic and phytohormonal analyses. The transcriptome results unveiled that auxin, cytokinin, and sugars likely act as main regulators. Endogenous hormone analysis revealed that the inactivation of auxin could influence bud dormancy. Exogenous cytokinin application primarily induced dormant buds to develop into secondary stolons, with the proportion of ramet formation being very low, less than 10%. Furthermore, weighted gene co-expression network analysis identified key genes involved in ramet formation, including auxin transport and response genes, the cytokinin activation gene LOG1, and glucose transport genes SWEET1 and SFP2. Consistently, in vitro cultivation experiments confirmed that glucose enhances the transition of dormant buds into ramets within two days. Collectively, cytokinin and glucose act as dormant breakers, with cytokinin mainly driving secondary stolon formation and glucose promoting ramet generation. This study improved our understanding of stolon patterning and bud development in the sympodial stolon of strawberries.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Plants (Basel) Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Plants (Basel) Año: 2024 Tipo del documento: Article País de afiliación: China Pais de publicación: Suiza