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Comparison of red raspberry and wild strawberry fruits reveals mechanisms of fruit type specification.
Zhou, Junhui; Li, Muzi; Li, Yongping; Xiao, Yuwei; Luo, Xi; Gao, Shenglan; Ma, Zhimin; Sadowski, Norah; Timp, Winston; Dardick, Chris; Callahan, Ann; Mount, Stephen M; Liu, Zhongchi.
Afiliación
  • Zhou J; Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD 20742, USA.
  • Li M; Peking University Institute of Advanced Agricultural Sciences, Shandong Laboratory of Advanced Agricultural Sciences, Weifang, Shandong 2611325, China.
  • Li Y; Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD 20742, USA.
  • Xiao Y; School of Life Sciences and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Shatin, Hong Kong, China.
  • Luo X; Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD 20742, USA.
  • Gao S; Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD 20742, USA.
  • Ma Z; Peking University Institute of Advanced Agricultural Sciences, Shandong Laboratory of Advanced Agricultural Sciences, Weifang, Shandong 2611325, China.
  • Sadowski N; Peking University Institute of Advanced Agricultural Sciences, Shandong Laboratory of Advanced Agricultural Sciences, Weifang, Shandong 2611325, China.
  • Timp W; Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA.
  • Dardick C; Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA.
  • Callahan A; USDA-ARS, Appalachian Fruit Research Station, Kearneysville, WV 25430, USA.
  • Mount SM; USDA-ARS, Appalachian Fruit Research Station, Kearneysville, WV 25430, USA.
  • Liu Z; Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD 20742, USA.
Plant Physiol ; 193(2): 1016-1035, 2023 09 22.
Article en En | MEDLINE | ID: mdl-37440715
ABSTRACT
Belonging to Rosaceae, red raspberry (Rubus idaeus) and wild strawberry (Fragaria vesca) are closely related species with distinct fruit types. While the numerous ovaries become the juicy drupelet fruits in raspberry, their strawberry counterparts become dry and tasteless achenes. In contrast, while the strawberry receptacle, the stem tip, enlarges to become a red fruit, the raspberry receptacle shrinks and dries. The distinct fruit-forming ability of homologous organs in these 2 species allows us to investigate fruit type determination. We assembled and annotated the genome of red raspberry (R. idaeus) and characterized its fruit development morphologically and physiologically. Subsequently, transcriptomes of dissected and staged raspberry fruit tissues were compared to those of strawberry from a prior study. Class B MADS box gene expression was negatively associated with fruit-forming ability, which suggested a conserved inhibitory role of class B heterodimers, PISTILLATA/TM6 or PISTILLATA/APETALA3, for fruit formation. Additionally, the inability of strawberry ovaries to develop into fruit flesh was associated with highly expressed lignification genes and extensive lignification of the ovary pericarp. Finally, coexpressed gene clusters preferentially expressed in the dry strawberry achenes were enriched in "cell wall biosynthesis" and "ABA signaling," while coexpressed clusters preferentially expressed in the fleshy raspberry drupelets were enriched in "protein translation." Our work provides extensive genomic resources as well as several potential mechanisms underlying fruit type specification. These findings provide the framework for understanding the evolution of different fruit types, a defining feature of angiosperms.
Asunto(s)

Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Fragaria / Rubus Idioma: En Revista: Plant Physiol Año: 2023 Tipo del documento: Article País de afiliación: Estados Unidos

Texto completo: 1 Banco de datos: MEDLINE Asunto principal: Fragaria / Rubus Idioma: En Revista: Plant Physiol Año: 2023 Tipo del documento: Article País de afiliación: Estados Unidos