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OsPRR37 and Ghd7 are the major genes for general combining ability of DTH, PH and SPP in rice.
Liu, Chuan; Song, Gaoyuan; Zhou, Yanhao; Qu, Xuefeng; Guo, Zhibin; Liu, Zhenwei; Jiang, Daiming; Yang, Daichang.
Afiliación
  • Liu C; State Key Laboratory of Hybrid Rice and College of Life Sciences, Wuhan University, 430072, China.
  • Song G; State Key Laboratory of Hybrid Rice and College of Life Sciences, Wuhan University, 430072, China.
  • Zhou Y; State Key Laboratory of Hybrid Rice and College of Life Sciences, Wuhan University, 430072, China.
  • Qu X; State Key Laboratory of Hybrid Rice and College of Life Sciences, Wuhan University, 430072, China.
  • Guo Z; State Key Laboratory of Hybrid Rice and College of Life Sciences, Wuhan University, 430072, China.
  • Liu Z; State Key Laboratory of Hybrid Rice and College of Life Sciences, Wuhan University, 430072, China.
  • Jiang D; State Key Laboratory of Hybrid Rice and College of Life Sciences, Wuhan University, 430072, China.
  • Yang D; State Key Laboratory of Hybrid Rice and College of Life Sciences, Wuhan University, 430072, China.
Sci Rep ; 5: 12803, 2015 Aug 04.
Article en En | MEDLINE | ID: mdl-26238949
Artificial selection of high yield crops and better livestock is paramount importance in breeding programs. Selection of elite parents with preferred traits from a phalanx of inbred lines is extremely laborious, time-consuming and highly random. General combining ability (GCA) was proposed and has been widely used for the evaluation of parents in hybrid breeding for more than half a century. However, the genetic and molecular basis of GCA has been largely overlooked. Here, we present two pleotropic QTLs are accounting for GCA of days to heading (DTH), plant height (PH) and spikelet per panicle (SPP) using an F2-based NCII design, the BC3F2 population as well as a set of nearly isogenic lines (NILs) with five testers. Both GCA1 and GCA2 were loss-of-function gene in low-GCA parent and gain-of-function gene in high-GCA parent, encoding the putative Pseudo-Response Regulators, OsPRR37 and Ghd7, respectively. Overexpression of GCA1 in low-GCA parent significantly increases GCA effects in three traits. Our results demonstrate that two GCA loci associate with OsPRR37 and Ghd7 and reveal that the genes responsible for important agronomic traits could simultaneously account for GCA effects.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Oryza / Factores de Transcripción / Genes de Plantas / Regulación de la Expresión Génica de las Plantas / Cromosomas de las Plantas / Sitios de Carácter Cuantitativo Idioma: En Revista: Sci Rep Año: 2015 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Oryza / Factores de Transcripción / Genes de Plantas / Regulación de la Expresión Génica de las Plantas / Cromosomas de las Plantas / Sitios de Carácter Cuantitativo Idioma: En Revista: Sci Rep Año: 2015 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido