Development and identification of an elite wheat-Hordeum californicum T6HcS/6BL translocation line ND646 containing several desirable traits
Document title: Development and identification of an elite wheat-Hordeum californicum T6HcS/6BL translocation line ND646 containing several desirable traits
Journal: Genetics and molecular biology
Database: PERIÓDICA
System number: 000459262
ISSN: 1415-4757
Authors: 1
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Institutions: 1Nanjing Agricultural University, Cytogenetics Institute, Nanjing, Jiangsu. China
2Ningxia University, School of Agriculture, Yinchuan, Ningxia. China
3Ningxia Academy of Agricultural-Forestry Sciences, Institute of Crop Sciences, Yinchuan, Ningxia. China
Year:
Volumen: 45
Number: 3
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, analítico
English abstract Hordeum californicum (H. californicum, 2n=2X=14, HcHc), one of the wild relatives of wheat (Triticum aestivum L.), harbors many desirable genes and is a potential genetic resource for wheat improvement. In this study, an elite line ND646 was selected from a BC4F5 population, which was developed using 60Co-γ irradiated wheat-H. californicum disomic addition line WJ28-1 (DA6Hc) as the donor parent and Ningchun 4 as the recurrent parent. ND646 was identified as a novel wheat-H. californicum 6HcS/6BL translocation line using genomic in situ hybridization (GISH), fluorescence in situ hybridization (FISH), and H. californicum-specific expressed sequence tag (EST) markers. Further evaluation revealed that ND646 had excellent performance in several traits, such as a higher sedimentation value (SV), higher water absorption rate (WAR), and higher hardness index (HI). More importantly, it had more kernels per spike (KPS), a higher grain yields (GY), and good resistance to powdery mildew, leaf rust, and 2,4-D butylate (2,4-D). Its excellent phenotypic performance laid the foundation for further investigation of its genetic architecture and makes ND646 a useful germplasm resource for wheat breeding
Disciplines: Biología
Keyword: Genética,
Gramíneas,
Trigo,
Hordeum californicum,
Translocación genética,
Biología molecular
Keyword: Genetics,
Gramineae,
Wheat,
Hordeum californicum,
Genetic translocation,
Molecular biology
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