Reduced height alleles (Rht) and Hagberg falling number of wheat
Reduced height alleles (Rht) and Hagberg falling number of wheat
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DOI：
10.1016/j.jcs.2012.01.003
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发表时间：
2012-05-01
影响因子：
3.8
通讯作者：
Murdoch, A. J.
中科院分区：
文献类型：
--
作者：
Gooding, M. J.;Uppal, R. K.;Murdoch, A. J.
近等基因系不同的等位基因减少高度（Rht）和光周期不敏感性（Ppd-D1）的品种。Mercia（2005/6-2010/11; rht（身高），Rht-B1 b，Rht-D1 b，Rht-B1 c，Rht 8 c + Ppd-D1 a，Rht-D1c，Rht 12）和cvs Mans Huntsman和Mans Widgeon（2007/8-2010/11; rht（身高）。Rht-B1 b、Rht-D1 b、Rht-B1 c、Rht-B1 b + Rht-D1 b、Rht-D1 b + Rht-B1 c）在一个田间地点进行了比较，但在不同的系统中进行了比较（“有机”，O，2005/6-2007/8 v.“密集”，I，2005/6-2010/11）。在该研究中心进行的进一步实验（2006/7-2008/9）比较了双单倍体（DH）群体[萨凡纳（Rht-D1 b）x Renesansa（Rht-8 c + Ppd-D1 a）]的64个品系。赤霉素（GA）不敏感的矮秆等位基因（Rht-B1 b; Rht-B1 c; Rht-D1 b; Rht-D1c）能降低α-淀粉酶活性和/或增加Hagberg降落值（HFN），但效应受系统、背景和季节的影响较大。只有Rht-B1 c增加粮食休眠，尽管生产的植物高于Rht-D1c。在麦西亚，GA敏感的Rht 8 c + Ppd-D1 a与HFN减少有关，但DH群体的分析表明，这与Ppd-D1 a而不是Rht 8 c更密切相关。GA敏感的严重矮化等位基因Rht 12与HFN减少相关。在HFN随季节的不稳定性往往增加与矮化程度。除Rht和Ppd-D1等位基因的效应外，平均粒重与HFN呈负相关。(C)2012爱思唯尔有限公司保留所有权利。
Near-isogenic lines varying for alleles for reduced height (Rht) and photoperiod insensitivity (Ppd-D1) in cv. Mercia (2005/6-2010/11; rht (tall), Rht-B1b, Rht-D1b, Rht-B1c, Rht8c+Ppd-D1a, Rht-D1c, Rht12) and cvs Mans Huntsman and Mans Widgeon (2007/8-2010/11; rht (tall). Rht-B1b, Rht-D1b, Rht-B1c, Rht-B1b+Rht-D1b, Rht-D1b+Rht-B1c) were compared at one field site, but within different systems ('organic', O, 2005/6-2007/8 v. 'intensive', I, 2005/6-2010/11). Further experiments at the site (2006/7-2008/9) compared 64 lines of a doubled-haploid (DH) population [Savannah (Rht-D1b) x Renesansa (Rht-8c+Ppd-D1a)]. Gibberellin (GA) insensitive dwarfing alleles (Rht-B1b; Rht-B1c; Rht-D1b; Rht-D1c) could reduce alpha-amylase activity and/or increase Hagberg falling number (HFN) but effects depended greatly on system, background and season. Only Rht-B1c increased grain dormancy despite producing plants taller than Rht-D1c. The GA-sensitive Rht8c+Ppd-D1a in Mercia was associated with reduced HFN but analysis of the DH population suggested this was more closely linked with Ppd-D1a, rather than Rht8c. The GA-sensitive severe-dwarfing allele Rht12 was associated with reduced HFN. Instability in HFN over season tended to increase with degree of dwarfing. There was a negative association between mean grain weight and HFN that was in addition to effects of Rht and Ppd-D1 allele. (C) 2012 Elsevier Ltd. All rights reserved.