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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erw127
|2 doi
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|a DE-627
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| 041 |
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|a eng
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| 100 |
1 |
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|a Chen, Yinglong
|e verfasserin
|4 aut
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| 245 |
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|a Root trait diversity, molecular marker diversity, and trait-marker associations in a core collection of Lupinus angustifolius
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|c 2016
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 02.10.2017
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|a Date Revised 25.03.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © The Author 2016. Published by Oxford University Press on behalf of the Society for Experimental Biology.
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|a Narrow-leafed lupin (Lupinus angustifolius L.) is the predominant grain legume crop in southern Australia, contributing half of the total grain legume production of Australia. Its yield in Australia is hampered by a range of subsoil constraints. The adaptation of lupin genotypes to subsoil constraints may be improved by selecting for optimal root traits from new and exotic germplasm sources. We assessed root trait diversity and genetic diversity of a core collection of narrow-leafed lupin (111 accessions) using 191 Diversity Arrays Technology (DArT) markers. The genetic relationship among accessions was determined using the admixture model in STRUCTURE. Thirty-eight root-associated traits were characterized, with 21 having coefficient of variation values >0.5. Principal coordinate analysis and cluster analysis of the DArT markers revealed broad diversity among the accessions. An ad hoc statistics calculation resulted in 10 distinct populations with significant differences among and within them (P < 0.001). The mixed linear model test in TASSEL showed a significant association between all root traits and some DArT markers, with the numbers of markers associated with an individual trait ranging from 2 to 13. The percentage of phenotypic variation explained by any one marker ranged from 6.4 to 21.8%, with 15 associations explaining >10% of phenotypic variation. The genetic variation values ranged from 0 to 7994, with 23 associations having values >240. Root traits such as deeper roots and lateral root proliferation at depth would be useful for this species for improved adaptation to drier soil conditions. This study offers opportunities for discovering useful root traits that can be used to increase the yield of Australian cultivars across variable environmental conditions
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Diversity Arrays Technology (DArT)
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| 650 |
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4 |
|a genetic diversity
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|a molecular marker
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| 650 |
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4 |
|a narrow-leafed lupin
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| 650 |
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|a root trait
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| 650 |
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|a trait-marker association.
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| 650 |
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|a Genetic Markers
|2 NLM
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| 700 |
1 |
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|a Shan, Fucheng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Nelson, Matthew N
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Siddique, Kadambot Hm
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Rengel, Zed
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 67(2016), 12 vom: 05. Juni, Seite 3683-97
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
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|g volume:67
|g year:2016
|g number:12
|g day:05
|g month:06
|g pages:3683-97
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|u http://dx.doi.org/10.1093/jxb/erw127
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