Files and links (1)
Published (Version of Record)CC BY V4.0, Open Access
Journal article
Novel sources of tolerance to aluminium toxicity in wild cicer (Cicer reticulatum and Cicer echinospermum) collections
Frontiers in Plant Science, Vol.12, 678211
2021
Abstract
In acid soils, the toxic form of aluminium, Al3+, significantly inhibits root growth and elongation, leading to less water and nutrient uptake. Previous research had shown differential Al toxicity tolerance among cultivated Cicer arietinum L. (chickpea); however, the potential for developing tolerant cultivars is limited by the narrow genetic diversity of cultivated chickpeas. Recent collections from Turkey of wild Cicer species, Cicer reticulatum, and Cicer echinospermum, have increased the available gene pool significantly, but there has been no large-scale screening of wild Cicer for acid tolerance or Al3+ toxicity tolerance. This study evaluated 167 wild Cicer and 17 Australian chickpea cultivars in a series of screenings under controlled growth conditions. The pH of 4.2 and Al concentrations of 15 and 60 μM Al were selected for large-scale screening based on dose response experiments in a low ionic strength nutrient solution. The change in root length showed better discrimination between tolerant and sensitive lines when compared with shoot and root dry weights and was used as a selection criterion. In a large-scale screening, 13 wild Cicer reticulatum accessions had a higher root tolerance index (≥50%), and eight had higher relative change in root length (≥40%) compared with PBA Monarch, which showed greater tolerance among the Australian domestic cultivars screened. In general, C. reticulatum species were found to be more tolerant than C. echinospermum, while genetic population groups Ret_5, Ret_6, and Ret_7 from Diyarbakir and Mardin Province were more tolerant than other groups. Among C. echinospermum, Ech_6 from the Siv-Diyar collection site of the Urfa Province showed better tolerance than other groups. In this first detailed screening of aluminium toxicity tolerance in the new wild Cicer collections, we identified accessions that were more tolerant than current domestic cultivars, providing promising germplasm for breeding programs to expand chickpea adaptation to acid soils.
Details
- Title
- Novel sources of tolerance to aluminium toxicity in wild cicer (Cicer reticulatum and Cicer echinospermum) collections
- Authors/Creators
- W. Vance (Author/Creator) - Murdoch UniversityKarthika Pradeep - Murdoch University, School of Agricultural SciencesS.R. Strachan (Author/Creator) - Murdoch UniversityS. Diffey (Author/Creator) - Apex Biometry, South Fremantle, WA, Australia.R.W. Bell (Author/Creator) - Murdoch University
- Publication Details
- Frontiers in Plant Science, Vol.12, 678211
- Publisher
- Frontiers Media
- Identifiers
- 991005540711607891
- Copyright
- © 2021 Vance, Pradeep, Strachan, Diffey and Bell
- Murdoch Affiliation
- Centre for Sustainable Farming Systems; Food Futures Institute; School of Agricultural Sciences
- Language
- English
- Resource Type
- Journal article
UN Sustainable Development Goals (SDGs)
This output has contributed to the advancement of the following goals:
Source: InCites
Metrics
123 File views/ downloads
122 Record Views
InCites Highlights
These are selected metrics from InCites Benchmarking & Analytics tool, related to this output
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.45 Soil Science
- 3.45.473 Soil Phosphorus Dynamics
- Web Of Science research areas
- Plant Sciences
- ESI research areas
- Plant & Animal Science