A WUSCHEL-related homeobox 3B gene, depilous dep, confers glabrousness of rice leaves and glumesReportar como inadecuado

A WUSCHEL-related homeobox 3B gene, depilous dep, confers glabrousness of rice leaves and glumes - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.


, 5:28

First Online: 02 October 2012Received: 26 December 2011Accepted: 27 September 2012


BackgroundGlabrousness is an important agricultural trait for the practical breeding of rice. In this study, depilous dep, the gene responsible for glabrous leaves and glumes of rice was identified by map-based cloning.

ResultsThe dep gene encodes a WUSCHEL-related homeobox 3B that was fine-mapped to a 22-kb region on the short arm of chromosome 5 using progenies derived from crosses between Koshihikari pubescent and GLSL15, an Oryza glaberrima chromosome segment substitution line glabrous. Complementation tests confirmed the conditioning of the glabrous phenotype by the dep gene. Phylogenetic analysis showed that dep groups with the WOX3 family of plant-specific homeobox transcription factors that are involved in regulating lateral organ development. Localization of dep in the nucleus indicates the function of the gene as a transcription factor. Spatial expression of the gene was observed in the base of young shoots, the leaf sheath, midrib, young roots and nodal structures.

ConclusionThe identification and cloning of dep will not only provide basis for future research on the elucidation of the molecular mechanisms underlying trichome formation in rice but will also aid in breeding programs for the development of glabrous varieties.

Keywordsdepilous Rice Trichomes Glabrous Leaves Glumes WUSCHEL-related homeobox Electronic supplementary materialThe online version of this article doi:10.1186-1939-8433-5-28 contains supplementary material, which is available to authorized users.

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Autor: Rosalyn B Angeles-Shim - Kenji Asano - Tomonori Takashi - Junghyun Shim - Takeshi Kuroha - Madoka Ayano - Motoyuki Ashikar

Fuente: https://link.springer.com/

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