Pleiotropic effects of the wheat domestication gene Q on yield and grain morphology

Transformation from q to Q during wheat domestication functioned outside the boundary of threshability to increase yield, grains m−2, grain weight and roundness, but to reduce grains per spike/spikelet. Mutation of the Q gene, well-known affecting wheat spike structure, represents a key domesticati...

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Main Authors:	Xie, Quan, Li, Na, Yang, Yang, Lv, Yulong, Yao, Hongni, Wei, Rong, Sparkes, Debbie L., Ma, Zhengqiang
Format:	Article
Language:	English
Published:	Springer 2018
Online Access:	http://eprints.nottingham.ac.uk/49281/ http://eprints.nottingham.ac.uk/49281/ http://eprints.nottingham.ac.uk/49281/ http://eprints.nottingham.ac.uk/49281/1/Xie%20et%20al.%20Revised%20MS.pdf

id	nottingham-49281
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spelling	nottingham-492812018-01-24T00:59:48Z http://eprints.nottingham.ac.uk/49281/ Pleiotropic effects of the wheat domestication gene Q on yield and grain morphology Xie, Quan Li, Na Yang, Yang Lv, Yulong Yao, Hongni Wei, Rong Sparkes, Debbie L. Ma, Zhengqiang Transformation from q to Q during wheat domestication functioned outside the boundary of threshability to increase yield, grains m−2, grain weight and roundness, but to reduce grains per spike/spikelet. Mutation of the Q gene, well-known affecting wheat spike structure, represents a key domestication step in the formation of today’s free-threshing, economically important wheats. In a previous study, multiple yield components and spike characteristics were associated with the Q gene interval in the bread wheat ‘Forno’ × European spelt ‘Oberkulmer’ recombinant inbred line population. Here, we reported that this interval was also associated with grain yield, grains m−2, grain morphology, and spike dry weight at anthesis. To clarify the roles of Q in agronomic trait performance, a functional marker for the Q gene was developed. Analysis of allelic effects showed that the bread wheat Q allele conferred free-threshing habit, soft glumes, and short and compact spikes compared with q. In addition, the Q allele contributed to higher grain yield, more grains m−2, and higher thousand grain weight, whereas q contributed to more grains per spike/spikelet likely resulting from increased preanthesis spike growth. For grain morphology, the Q allele was associated with reduced ratio of grain length to height, indicating a rounder grain. These results are supported by analysis of four Q mutant lines in the Chinese Spring background. Therefore, the transition from q to Q during wheat domestication had profound effects on grain yield and grain shape evolution as well, being a consequence of pleiotropy. Springer 2018-01-20 Article PeerReviewed application/pdf en http://eprints.nottingham.ac.uk/49281/1/Xie%20et%20al.%20Revised%20MS.pdf Xie, Quan and Li, Na and Yang, Yang and Lv, Yulong and Yao, Hongni and Wei, Rong and Sparkes, Debbie L. and Ma, Zhengqiang (2018) Pleiotropic effects of the wheat domestication gene Q on yield and grain morphology. Planta . ISSN 0032-0935 https://link.springer.com/article/10.1007/s00425-018-2847-4/fulltext.html doi:10.1007/s00425-018-2847-4 doi:10.1007/s00425-018-2847-4
repository_type	Digital Repository
institution_category	Local University
institution	University of Nottingham Malaysia Campus
building	Nottingham Research Data Repository
collection	Online Access
language	English
description	Transformation from q to Q during wheat domestication functioned outside the boundary of threshability to increase yield, grains m−2, grain weight and roundness, but to reduce grains per spike/spikelet. Mutation of the Q gene, well-known affecting wheat spike structure, represents a key domestication step in the formation of today’s free-threshing, economically important wheats. In a previous study, multiple yield components and spike characteristics were associated with the Q gene interval in the bread wheat ‘Forno’ × European spelt ‘Oberkulmer’ recombinant inbred line population. Here, we reported that this interval was also associated with grain yield, grains m−2, grain morphology, and spike dry weight at anthesis. To clarify the roles of Q in agronomic trait performance, a functional marker for the Q gene was developed. Analysis of allelic effects showed that the bread wheat Q allele conferred free-threshing habit, soft glumes, and short and compact spikes compared with q. In addition, the Q allele contributed to higher grain yield, more grains m−2, and higher thousand grain weight, whereas q contributed to more grains per spike/spikelet likely resulting from increased preanthesis spike growth. For grain morphology, the Q allele was associated with reduced ratio of grain length to height, indicating a rounder grain. These results are supported by analysis of four Q mutant lines in the Chinese Spring background. Therefore, the transition from q to Q during wheat domestication had profound effects on grain yield and grain shape evolution as well, being a consequence of pleiotropy.
format	Article
author	Xie, Quan Li, Na Yang, Yang Lv, Yulong Yao, Hongni Wei, Rong Sparkes, Debbie L. Ma, Zhengqiang
spellingShingle	Xie, Quan Li, Na Yang, Yang Lv, Yulong Yao, Hongni Wei, Rong Sparkes, Debbie L. Ma, Zhengqiang Pleiotropic effects of the wheat domestication gene Q on yield and grain morphology
author_facet	Xie, Quan Li, Na Yang, Yang Lv, Yulong Yao, Hongni Wei, Rong Sparkes, Debbie L. Ma, Zhengqiang
author_sort	Xie, Quan
title	Pleiotropic effects of the wheat domestication gene Q on yield and grain morphology
title_short	Pleiotropic effects of the wheat domestication gene Q on yield and grain morphology
title_full	Pleiotropic effects of the wheat domestication gene Q on yield and grain morphology
title_fullStr	Pleiotropic effects of the wheat domestication gene Q on yield and grain morphology
title_full_unstemmed	Pleiotropic effects of the wheat domestication gene Q on yield and grain morphology
title_sort	pleiotropic effects of the wheat domestication gene q on yield and grain morphology
publisher	Springer
publishDate	2018
url	http://eprints.nottingham.ac.uk/49281/ http://eprints.nottingham.ac.uk/49281/ http://eprints.nottingham.ac.uk/49281/ http://eprints.nottingham.ac.uk/49281/1/Xie%20et%20al.%20Revised%20MS.pdf
first_indexed	2018-09-06T14:05:34Z
last_indexed	2018-09-06T14:05:34Z
_version_	1610867261420077056

Pleiotropic effects of the wheat domestication gene Q on yield and grain morphology

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