Introgression of “ QTL‐hotspot ” region enhances drought tolerance and grain yield in three elite chickpea cultivars

C. Bharadwaj; S. Tripathi; K.R. Soren; M. Thudi; R.K. Singh; S. Sheoran; M. Roorkiwal; B.S. Patil; A. Chitikineni; R. Palakurthi; A. Vemula; A. Rathore; Y. Kumar; S.K. Chaturvedi; B. Mondal; P.S. Shanmugavadivel; A.K. Srivastava; G.P. Dixit; N.P. Singh; R.K. Varshney

doi:10.1002/tpg2.20076

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Introgression of “ QTL‐hotspot ” region enhances drought tolerance and grain yield in three elite chickpea cultivars

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Introgression of “ QTL‐hotspot ” region enhances drought tolerance and grain yield in three elite chickpea cultivars

C. Bharadwaj, S. Tripathi, K.R. Soren, M. Thudi, R.K. Singh, S. Sheoran, M. Roorkiwal, B.S. Patil, A. Chitikineni, R. Palakurthi, …

The Plant Genome, Vol.14(1), Art. e20076

2021

DOI: https://doi.org/10.1002/tpg2.20076

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Abstract

With an aim of enhancing drought tolerance using a marker‐assisted backcrossing (MABC) approach, we introgressed the “QTL‐hotspot” region from ICC 4958 accession that harbors quantitative trait loci (QTLs) for several drought‐tolerance related traits into three elite Indian chickpea (Cicer arietinum L.) cultivars: Pusa 372, Pusa 362, and DCP 92‐3. Of eight simple sequence repeat (SSR) markers in the QTL‐hotspot region, two to three polymorphic markers were used for foreground selection with respective cross‐combinations. A total of 47, 53, and 46 SSRs were used for background selection in case of introgression lines (ILs) developed in genetic backgrounds of Pusa 372, Pusa 362, and DCP 92‐3, respectively. In total, 61 ILs (20 BC3F3 in Pusa 372; 20 BC2F3 in Pusa 362, and 21 BC3F3 in DCP 92‐3), with >90% recurrent parent genome recovery were developed. Six improved lines in different genetic backgrounds (e.g. BGM 10216 in Pusa 372; BG 3097 and BG 4005 in Pusa 362; IPC(L4‐14), IPC(L4‐16), and IPC(L19‐1) in DCP 92‐3) showed better performance than their respective recurrent parents. BGM 10216, with 16% yield gain over Pusa 372, has been released as Pusa Chickpea 10216 by the Central Sub‐Committees on Crop Standards, Notification and Release of Varieties of Agricultural Crops, Ministry of Agriculture and Farmers Welfare, Government of India, for commercial cultivation in India. In summary, this study reports introgression of the QTL‐hotspot for enhancing yield under rainfed conditions, development of several introgression lines, and release of Pusa Chickpea 10216 developed through molecular breeding in India.

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Title: Introgression of “ QTL‐hotspot ” region enhances drought tolerance and grain yield in three elite chickpea cultivars
Authors/Creators: C. Bharadwaj (Author/Creator) - Indian Agricultural Research Institute
S. Tripathi (Author/Creator) - Indian Agricultural Research Institute
K.R. Soren (Author/Creator) - Indian Institute of Pulses Research
M. Thudi (Author/Creator) - International Crops Research Institute for the Semi-Arid Tropics
R.K. Singh (Author/Creator) - Indian Agricultural Research Institute
S. Sheoran (Author/Creator) - Indian Agricultural Research Institute
M. Roorkiwal (Author/Creator) - International Crops Research Institute for the Semi-Arid Tropics
B.S. Patil (Author/Creator) - IAR Systems
A. Chitikineni (Author/Creator) - International Crops Research Institute for the Semi-Arid Tropics
R. Palakurthi (Author/Creator) - International Crops Research Institute for the Semi-Arid Tropics
A. Vemula (Author/Creator) - International Crops Research Institute for the Semi-Arid Tropics
A. Rathore (Author/Creator) - International Crops Research Institute for the Semi-Arid Tropics
Y. Kumar (Author/Creator) - Indian Institute of Pulses Research
S.K. Chaturvedi (Author/Creator) - Indian Institute of Pulses Research
B. Mondal (Author/Creator) - Indian Institute of Pulses Research
P.S. Shanmugavadivel (Author/Creator) - Indian Institute of Pulses Research
A.K. Srivastava (Author/Creator) - Indian Institute of Pulses Research
G.P. Dixit (Author/Creator) - Indian Council of Agricultural Research
N.P. Singh (Author/Creator) - Indian Institute of Pulses Research
R.K. Varshney (Author/Creator) - International Crops Research Institute for the Semi-Arid Tropics
Publication Details: The Plant Genome, Vol.14(1), Art. e20076
Publisher: Wiley Periodicals LLC on behalf of Crop Science Society of America
Identifiers: 991005545087807891
Copyright: © 2021 The Authors.
Murdoch Affiliation: Murdoch University
Language: English
Resource Type: Journal article

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Collaboration types: Domestic 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