期刊
  出版年
  关键词
结果中检索 Open Search
Please wait a minute...
选择: 显示/隐藏图片
1. 小麦高分子量谷蛋白Dy10亚基对面团特性和面制品品质的影响
WANG Yan, GUO Zhen-ru, CHEN Qing, LI Yang, ZHAO Kan, WAN Yong-fang, Malcolm J. HAWKESFORD, JIANG Yun-feng, KONG Li, PU Zhi-en, DENG Mei, JIANG Qian-tao, LAN Xiu-jin, WANG Ji-rui, CHEN Guo-yue, MA Jian, ZHENG You-liang, WEI Yu-ming, QI Peng-fei
Journal of Integrative Agriculture    2023, 22 (6): 1609-1617.   DOI: 10.1016/j.jia.2022.08.041
摘要423)      PDF    收藏
高分子量谷蛋白(HMW-GS)是决定小麦加工品质的关键种子储藏蛋白类型。Dx5+Dy10是公认的优质HMW-GS组合,但Dy10亚基对加工品质的作用尚不清楚。本研究利用一份Dy10缺失突变体(含Dy10-null等位变异)和体外添加Dy10蛋白的方法研究了Dy10亚基的加工品质效应。Dy10-null等位变异可正常转录,但不表达蛋白。构建近等基因系,发现Dy10-null等位变异显著降低面筋指数、Zeleny沉降值、形成时间和稳定时间,弱化面团强度;降低HMW-GS含量,提高醇溶蛋白含量,降低谷醇比,提升饼干品质。体外添加纯化的Dy10蛋白,发现Dy10对饼干品质有负作用。综上,Dy10亚基与小麦面团强度密切相关,Dy10-null等位变异对弱筋小麦育种具有价值。
参考文献 | 相关文章 | 多维度评价
2. JIA-2020-1983不同的遗传背景下鉴定和验证稳定表达的小麦小穗数主效QTL
DING Pu-yang, MO Zi-qiang, TANG Hua-ping, MU Yang, DENG Mei, JIANG Qian-tao, LIU Ya-xi, CHEN Guang-deng, CHEN Guo-yue, WANG Ji-rui, LI Wei, QI Peng-fei, JIANG Yun-feng, KANG Hou-yang, YAN Gui-jun, Wei Yu-ming, ZHENG You-liang, LAN Xiu-jin, MA Jian
Journal of Integrative Agriculture    2022, 21 (6): 1551-1562.   DOI: 10.1016/S2095-3119(20)63602-4
摘要268)      PDF    收藏

本研究基于小麦Wheat55K SNP芯片鉴定到两个主效且稳定表达的小穗数QTL。其中,QSns.sau-2SY-2D.1在之前的研究中已经被报道,而本研究中新鉴定到一个QTL(QSns.sau-2SY-7A),我们对其进行了深入分析。QSns.sau-2SY-7A的LOD值较高,介于4.46至16.00之间,解释10.21-40.78%的表型变异。QSns.sau-2SY-7A位于染色体臂7AL上4.75-cM的区间,侧翼标记为AX-110518554AX-110094527。我们对两个主效QTL的贡献和相互作用进行了深入的分析和讨论。我们进一步开发一个与QSns.sau-2SY-7A紧密连锁的KASP标记,在一个F2:3群体和一个包含101个小麦高代育种品系的自然群体中对该QTL的效应进行了验证。此外,在QSns.sau-2SY-7A定位区间中,预测到一个水稻中报道的调控小穗数的同源基因WAPO1,结合前人报道,该基因很有可能是该位点的候选基因。综上所述,本研究系统揭示了被广泛用于育种亲本的品系‘20828’的多小穗数遗传基础,并开发获得紧密连锁标记,有助于后续主效QTL的精细定位和育种利用


参考文献 | 相关文章 | 多维度评价
3. Genetic dissection of wheat uppermost-internode diameter and its association with agronomic traits in five recombinant inbred line populations at various field environments
LIU Hang, TANG Hua-ping, LUO Wei, MU Yang, JIANG Qian-tao, LIU Ya-xi, CHEN Guo-yue, WANG Ji-rui, ZHENG Zhi, QI Peng-fei, JIANG Yun-feng, CUI Fa, SONG Yin-ming, YAN Gui-jun, WEI Yuming, LAN Xiu-jin, ZHENG You-liang, MA Jian
Journal of Integrative Agriculture    2021, 20 (11): 2849-2861.   DOI: 10.1016/S2095-3119(20)63412-8
摘要207)      PDF    收藏

下节间直径(UID)是与小麦穗部发育和丰产性相关的重要形态性状。而我们对其遗传基础的了解知之甚少。本文在5个小麦重组自交系(RIL)群体中利用高密度遗传图谱鉴定了控制UID的数量性状位点(QTL)。在5个RIL群体中共检测到25个UID QTL,分别位于1A、1D(3个QTL)、2B(2)、2D(3)、3B、3D、4A、4B(3)、4D、5A(5)、5B(2)、6B、7D染色体上。其中,5个主效且稳定的QTL:QUid.sau-2CN-1D.1QUid.sau-2SY-1DQUid.sau-QZ-2DQUid.sau-SC-3DQUid.sau-AS-4B分别在5个RIL群体的多个环境中检测到。QUid.sau-2CN-1DQUid.sau-2SY-1DQUid.sau-SC-3D 为三个新的UID 位点。我们进一步开发了与主效QTL紧密连锁的竞争性等位基因特异性PCR(KASP)标记,用于构建近等基因系(NILs)。此外,我们还在主效QTL的物理区间内预测了候选基因,这些候选基因大多与植物发育和水分运输有关。以中国春为参考基因组,我们对定位到的主效QTL的物理区间进行了比较,结果表明,QUid.sau-2CN-1D.1QUid.sau-2SY-1D可能是等位基因,进一步证实了它们的真实性和有效性。本文也对UID与其他农艺性状的相关关系及UID的大小进行了讨论。总体而言,我们的研究结果剖析了小麦UID的潜在遗传基础,为这些QTL的进一步精细定位和图位克隆奠定了基础


参考文献 | 相关文章 | 多维度评价
4. Identification of a Group of Novel γ-Gliadin Genes
QI Peng-fei, WEI Yu-ming, Ouellet Thérèse, CHEN Qing, WANG Zhao, WEI Zhen-zhen , ZHENG You-liang
Journal of Integrative Agriculture    2014, 13 (2): 290-298.   DOI: 10.1016/S2095-3119(13)60358-5
摘要1690)      PDF    收藏
γ-Gliadins are an important component of wheat seed storage proteins. Four novel γ-gliadin genes (Gli-ng1 to Gli-ng4) were cloned from wheat (Triticum aestivum) and Aegilops species. The novel γ-gliadins were much smaller in molecular size when compared to the typical γ-gliadins, which was caused by deletion of the non-repetitive domain, glutamine-rich region, 3´ part of the repetitive domain, and 5´ part of the C-terminal, possibly due to illegitimate recombination between the repetitive domain and the C-terminal. As a result, Gli-ng1 and Gli-ng4 only contained two and three cysteine residues, respectively. Gli-ng1, as the representative of novel γ-gliadin genes, has been sub-cloned into an Escherichia coli expression system. SDS- PAGE indicated that the both cysteine residues of Gli-ng1 could participate in the formation of intermolecular disulphide bonds in vitro. Successful cloning of Gli-ng1 from seed cDNA of T. aestivum cv. Chinese Spring suggested that these novel γ-gliadin genes were normally transcribed during the development of seeds. Phylogenic analysis indicated that the four novel γ-gliadin genes had a closer relationship with those from the B (S) genome of wheat.
参考文献 | 相关文章 | 多维度评价