Swedish spring wheat varieties with the rare high grain protein allele of NAM-B1 differ in leaf senescence and grain mineral content.
Some Swedish spring wheat varieties have recently been shown to carry a rare wildtype (wt) allele of the gene NAM-B1, known to affect leaf senescence and nutrient retranslocation to the grain. The wt allele is believed to increase grain protein concentration and has attracted interest from breeders...
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ftdoajarticles:oai:doaj.org/article:7e16f9426bfa4ca8a35670a5afa776f5 2023-05-15T16:12:14+02:00 Swedish spring wheat varieties with the rare high grain protein allele of NAM-B1 differ in leaf senescence and grain mineral content. Linnéa Asplund Göran Bergkvist Matti W Leino Anna Westerbergh Martin Weih 2013-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0059704 https://doaj.org/article/7e16f9426bfa4ca8a35670a5afa776f5 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC3605437?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0059704 https://doaj.org/article/7e16f9426bfa4ca8a35670a5afa776f5 PLoS ONE, Vol 8, Iss 3, p e59704 (2013) Medicine R Science Q article 2013 ftdoajarticles https://doi.org/10.1371/journal.pone.0059704 2022-12-31T09:25:25Z Some Swedish spring wheat varieties have recently been shown to carry a rare wildtype (wt) allele of the gene NAM-B1, known to affect leaf senescence and nutrient retranslocation to the grain. The wt allele is believed to increase grain protein concentration and has attracted interest from breeders since it could contribute to higher grain quality and more nitrogen-efficient varieties. This study investigated whether Swedish varieties with the wt allele differ from varieties with one of the more common, non-functional alleles in order to examine the effect of the gene in a wide genetic background, and possibly explain why the allele has been retained in Swedish varieties. Forty varieties of spring wheat differing in NAM-B1 allele type were cultivated under controlled conditions. Senescence was monitored and grains were harvested and analyzed for mineral nutrient concentration. Varieties with the wt allele reached anthesis earlier and completed senescence faster than varieties with the non-functional allele. The wt varieties also had more ears, lighter grains and higher yields of P and K. Contrary to previous information on effects of the wt allele, our wt varieties did not have increased grain N concentration or grain N yield. In addition, temporal studies showed that straw length has decreased but grain N yield has remained unaffected over a century of Swedish spring wheat breeding. The faster development of wt varieties supports the hypothesis of NAM-B1 being preserved in Fennoscandia, with its short growing season, because of accelerated development conferred by the NAM-B1 wt allele. Although the possible effects of other gene actions were impossible to distinguish, the genetic resource of Fennoscandian spring wheats with the wt NAM-B1 allele is interesting to investigate further for breeding purposes. Article in Journal/Newspaper Fennoscandia Fennoscandian Directory of Open Access Journals: DOAJ Articles PLoS ONE 8 3 e59704 |
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Medicine R Science Q Linnéa Asplund Göran Bergkvist Matti W Leino Anna Westerbergh Martin Weih Swedish spring wheat varieties with the rare high grain protein allele of NAM-B1 differ in leaf senescence and grain mineral content. |
topic_facet |
Medicine R Science Q |
description |
Some Swedish spring wheat varieties have recently been shown to carry a rare wildtype (wt) allele of the gene NAM-B1, known to affect leaf senescence and nutrient retranslocation to the grain. The wt allele is believed to increase grain protein concentration and has attracted interest from breeders since it could contribute to higher grain quality and more nitrogen-efficient varieties. This study investigated whether Swedish varieties with the wt allele differ from varieties with one of the more common, non-functional alleles in order to examine the effect of the gene in a wide genetic background, and possibly explain why the allele has been retained in Swedish varieties. Forty varieties of spring wheat differing in NAM-B1 allele type were cultivated under controlled conditions. Senescence was monitored and grains were harvested and analyzed for mineral nutrient concentration. Varieties with the wt allele reached anthesis earlier and completed senescence faster than varieties with the non-functional allele. The wt varieties also had more ears, lighter grains and higher yields of P and K. Contrary to previous information on effects of the wt allele, our wt varieties did not have increased grain N concentration or grain N yield. In addition, temporal studies showed that straw length has decreased but grain N yield has remained unaffected over a century of Swedish spring wheat breeding. The faster development of wt varieties supports the hypothesis of NAM-B1 being preserved in Fennoscandia, with its short growing season, because of accelerated development conferred by the NAM-B1 wt allele. Although the possible effects of other gene actions were impossible to distinguish, the genetic resource of Fennoscandian spring wheats with the wt NAM-B1 allele is interesting to investigate further for breeding purposes. |
format |
Article in Journal/Newspaper |
author |
Linnéa Asplund Göran Bergkvist Matti W Leino Anna Westerbergh Martin Weih |
author_facet |
Linnéa Asplund Göran Bergkvist Matti W Leino Anna Westerbergh Martin Weih |
author_sort |
Linnéa Asplund |
title |
Swedish spring wheat varieties with the rare high grain protein allele of NAM-B1 differ in leaf senescence and grain mineral content. |
title_short |
Swedish spring wheat varieties with the rare high grain protein allele of NAM-B1 differ in leaf senescence and grain mineral content. |
title_full |
Swedish spring wheat varieties with the rare high grain protein allele of NAM-B1 differ in leaf senescence and grain mineral content. |
title_fullStr |
Swedish spring wheat varieties with the rare high grain protein allele of NAM-B1 differ in leaf senescence and grain mineral content. |
title_full_unstemmed |
Swedish spring wheat varieties with the rare high grain protein allele of NAM-B1 differ in leaf senescence and grain mineral content. |
title_sort |
swedish spring wheat varieties with the rare high grain protein allele of nam-b1 differ in leaf senescence and grain mineral content. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2013 |
url |
https://doi.org/10.1371/journal.pone.0059704 https://doaj.org/article/7e16f9426bfa4ca8a35670a5afa776f5 |
genre |
Fennoscandia Fennoscandian |
genre_facet |
Fennoscandia Fennoscandian |
op_source |
PLoS ONE, Vol 8, Iss 3, p e59704 (2013) |
op_relation |
http://europepmc.org/articles/PMC3605437?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0059704 https://doaj.org/article/7e16f9426bfa4ca8a35670a5afa776f5 |
op_doi |
https://doi.org/10.1371/journal.pone.0059704 |
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PLoS ONE |
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