Journal article
Fast‐Track introgression of “ QTL‐hotspot” for root traits and other drought tolerance traits in JG 11, an elite and leading variety of chickpea
The Plant Genome, Vol.6(3)
2013
Abstract
A “QTL-hotspot” containing quantitative trait loci (QTL) for several root and drought tolerance traits was transferred through marker-assisted backcrossing into JG 11, a leading variety of chickpea (Cicer arietinum L.) in India from the donor parent ICC 4958. Foreground selection with up to three simple sequence repeat markers, namely TAA170, ICCM0249, and STMS11, and background selection with up to 10 amplified fragment length polymorphism primer combinations was undertaken. After undertaking three backcrosses with foreground and background selection and selfing, 29 BC3F2 plants homozygous for two markers (ICCM0249 and TAA170) were selected and referred as introgression lines (ILs). Root trait phenotyping of these ILs showed higher rooting depth (RDp) (average 115.21 ± 2.24 cm) in all 29 ILs, better root length density (RLD) (average 0.41 ± 0.02 cm cm−3) in 26 ILs, and higher root dry weight (RDW) (average 1.25 ± 0.08 g per cylinder) as compared to the recurrent parent, JG 11 (111.70 cm for RDp, 0.39 cm cm−3 for RLD, and 1.10 g per cylinder for RDW), as well as the donor parent, ICC 4958 (114.20 cm for RDp, 0.45 cm cm−3 for RLD, and 1.25 g per cylinder for RDW). These ILs, developed in 3 yr, after multilocation field trials may be released as improved variety with enhanced drought tolerance.
Details
- Title
- Fast‐Track introgression of “ QTL‐hotspot” for root traits and other drought tolerance traits in JG 11, an elite and leading variety of chickpea
- Authors/Creators
- R.K. Varshney (Author/Creator) - Centro Internacional de Mejoramiento de Maíz Y TrigoP.M. Gaur (Author/Creator) - International Crops Research Institute for the Semi-Arid TropicsS.K. Chamarthi (Author/Creator) - International Crops Research Institute for the Semi-Arid TropicsL. Krishnamurthy (Author/Creator) - International Crops Research Institute for the Semi-Arid TropicsS. Tripathi (Author/Creator) - Indian Agricultural Research InstituteJ. Kashiwagi (Author/Creator) - Daido UniversityS. Samineni (Author/Creator) - International Crops Research Institute for the Semi-Arid TropicsV.K. Singh (Author/Creator) - International Crops Research Institute for the Semi-Arid TropicsM. Thudi (Author/Creator) - International Crops Research Institute for the Semi-Arid TropicsD. Jaganathan (Author/Creator) - International Crops Research Institute for the Semi-Arid Tropics
- Publication Details
- The Plant Genome, Vol.6(3)
- Publisher
- Wiley Periodicals LLC on behalf of Crop Science Society of America
- Identifiers
- 991005540198307891
- Copyright
- © 2013 The Authors.
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.4 Crop Science
- 3.4.96 QTL
- Web Of Science research areas
- Genetics & Heredity
- Plant Sciences
- ESI research areas
- Plant & Animal Science