Título
Protein analysis reveals differential accumulation of late embryogenesis abundant and storage proteins in seeds of wild and cultivated amaranth species
Autor
ESAU BOJORQUEZ VELAZQUEZ
Alberto Barrera Pacheco
Eduardo Espitia Rangel
Alfredo Herrera_Estrella
Ana Paulina Barba de la Rosa
Nivel de Acceso
Acceso Abierto
Identificador alterno
doi: https://doi.org/10.1186/s12870-019-1656-7
Materias
Resumen o descripción
"Background Amaranth is a plant naturally resistant to various types of stresses that produces seeds of excellent nutritional quality, so amaranth is a promising system for food production. Amaranth wild relatives have survived climate changes and grow under harsh conditions, however no studies about morphological and molecular characteristics of their seeds are known. Therefore, we carried out a detailed morphological and molecular characterization of wild species A. powellii and A. hybridus, and compared them with the cultivated amaranth species A. hypochondriacus (waxy and non-waxy seeds) and A. cruentus. Results Seed proteins were fractionated according to their polarity properties and were analysed in one-dimensional gel electrophoresis (1-DE) followed by nano-liquid chromatography coupled to tandem mass spectrometry (nLC-MS/MS). A total of 34 differentially accumulated protein bands were detected and 105 proteins were successfully identified. Late embryogenesis abundant proteins were detected as species-specific. Oleosins and oil bodies associated proteins were observed preferentially in A. cruentus. Different isoforms of the granule-bound starch synthase I, and several paralogs of 7S and 11S globulins were also identified. The in silico structural analysis from different isoforms of 11S globulins was carried out, including new types of 11S globulin not reported so far. Conclusions The results provide novel information about 11S globulins and proteins related in seed protection, which could play important roles in the nutritional value and adaptive tolerance to stress in amaranth species."
Editor
BMC
Fecha de publicación
2019
Tipo de publicación
Artículo
Versión de la publicación
Versión publicada
Recurso de información
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application/pdf
Sugerencia de citación
Bojórquez-Velázquez, E., Barrera-Pacheco, A., Espitia-Rangel, E. et al. Protein analysis reveals differential accumulation of late embryogenesis abundant and storage proteins in seeds of wild and cultivated amaranth species. BMC Plant Biol 19, 59 (2019). https://doi.org/10.1186/s12870-019-1656-7
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Repositorio IPICYT
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