Pentaploid wheat hybrids: applications, characterisation, and challenges

Padmanaban, Sriram and Zhang, Peng and Hare, Ray and Sutherland, Mark and Martin, Anke (2017) Pentaploid wheat hybrids: applications, characterisation, and challenges. Frontiers in Plant Science, 8.

[img]
Preview
Text (Published Version)
fpls-08-00358.pdf
Available under License Creative Commons Attribution 4.0.

Download (1287Kb) | Preview

Abstract

Interspecific hybridisation between hexaploid and tetraploid wheat species leads to the development of F1 pentaploid hybrids with unique chromosomal constitutions.
Pentaploid hybrids derived from bread wheat (Triticum aestivum L.) and durum wheat(Triticum turgidum spp. durum Desf.) crosses can improve the genetic background of
either parent by transferring traits of interest. The genetic variability derived from bread and durum wheat and transferred into pentaploid hybrids has the potential to improve disease resistance, abiotic tolerance, and grain quality, and to enhance agronomic characters. Nonetheless, pentaploid wheat hybrids have not been fully exploited in
breeding programs aimed at improving crops. There are several potential barriers for efficient pentaploid wheat production, such as low pollen compatibility, poor seed set,
failed seedling establishment, and frequent sterility in F1 hybrids. However, most of the barriers can be overcome by careful selection of the parental genotypes and by employing the higher ploidy level genotype as the maternal parent. In this review, we summarize the current research on pentaploid wheat hybrids and analyze the advantages and pitfalls of current methods used to assess pentaploid-derived lines. Furthermore, we discuss current and potential applications in commercial breeding programs and future directions for research into pentaploid wheat.


Statistics for USQ ePrint 31414
Statistics for this ePrint Item
Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Copyright © 2017 Padmanaban, Zhang, Hare, Sutherland and Martin. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Agricultural, Computational and Environmental Sciences
Date Deposited: 21 Aug 2017 01:50
Last Modified: 18 Apr 2018 00:58
Uncontrolled Keywords: in situ hybridisation, interploidy crosses, pentaploid hybrids, Triticum aestivum, Triticum turgidium spp. durum
Fields of Research : 07 Agricultural and Veterinary Sciences > 0703 Crop and Pasture Production > 070308 Crop and Pasture Protection (Pests, Diseases and Weeds)
Socio-Economic Objective: B Economic Development > 82 Plant Production and Plant Primary Products > 8205 Winter Grains and Oilseeds > 820507 Wheat
Identification Number or DOI: 10.3389/fpls.2017.00358
URI: http://eprints.usq.edu.au/id/eprint/31414

Actions (login required)

View Item Archive Repository Staff Only