The essential role of genetic resources in narrow-leafed lupin improvement
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The narrow-leafed lupin (Lupinus angustifolius L.) is a legume with much to offer to agriculture and human wellbeing through its adaptation to nitrogen- and phosphorus-deficient, acid, sandy soils, and production of nutritious, very low glycemic index grain with manifold health benefits. However, the industry has exploited only a small fraction of the genetic and adaptive diversity of the species, reflecting a short and fragmented domestication history. Given declining global production, unlocking the potential residing in untapped sources of genetic diversity to maximise yield and value is critical for the future of the crop. To this end, a wide range of genetic resources is under evaluation. The Australian Lupin Collection comprises almost 4600 diverse, mostly wild accessions, many of which have been genotyped using DArT (Diversity Array Technology) markers, and collection sites characterised to facilitate ecophysiology of contrasting material. Additional exotic genetic resources include recombinant inbred line and mutant populations, as well as inter-specific crosses. These resources are being used to investigate specific adaptation and genetic and molecular control of key traits, all of which will be expedited by current efforts to provide a reference genome sequence for L. angustifolius. Genetic base broadening is the current breeding focus, combining distantly related wild and domestic material with elite cultivars in double-backcrosses or topcrosses, with dramatic effects on yield. In future this will be complemented by marker-based, targeted trait introgression to improve narrow-leafed lupin adaptation, quality/value, and fit into the farming system. © CSIRO 2013.
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Exploring the genetic and adaptive diversity of a pan-Mediterranean crop wild relative: narrow-leafed lupinMousavi-Derazmahalleh, M.; Bayer, P.; Nevado, B.; Hurgobin, B.; Filatov, D.; Kilian, A.; Kamphuis, Lars; Singh, Karam; Berger, J.; Hane, James; Edwards, D.; Erskine, W.; Nelson, M. (2018)© 2018 The Author(s). Most grain crops suffer from a narrow genetic base, which limits their potential for adapting to new challenges such as increased stresses associated with climate change. Plant breeders are returning ...
INDEL variation in the regulatory region of the major flowering time gene LanFTc1 is associated with vernalization response and flowering time in narrow-leafed lupin (Lupinus angustifolius L.)Taylor, C.; Kamphuis, Lars; Zhang, W.; Garg, G.; Berger, J.; Mousavi-Derazmahalleh, M.; Bayer, P.; Edwards, D.; Singh, Karam; Cowling, W.; Nelson, M. (2018)© 2018 The Authors Plant, Cell & Environment Published by John Wiley & Sons Ltd. Narrow-leafed lupin (Lupinus angustifolius L.) cultivation was transformed by 2 dominant vernalization-insensitive, early flowering time ...
The western Mediterranean region provided the founder population of domesticated narrow-leafed lupinMousavi-Derazmahalleh, M.; Nevado, B.; Bayer, P.; Filatov, D.; Hane, James; Edwards, D.; Erskine, W.; Nelson, M. (2018)Key message: This study revealed that the western Mediterranean provided the founder population for domesticated narrow-leafed lupin and that genetic diversity decreased significantly during narrow-leafed lupin domestication. ...