Identification of Fusarium verticillioides Resistance Alleles in Three Maize Populations With Teosinte Gene Introgression.
Identification of Fusarium verticillioides Resistance Alleles in Three Maize Populations With Teosinte Gene Introgression.
复制标题
三个大蜀黍基因渗入玉米群体中轮枝镰刀菌抗性等位基因的鉴定
DOI：
10.3389/fpls.2022.942397
复制
发表时间：
2022
影响因子：
5.6
通讯作者：
中科院分区：
文献类型：
--
作者：
穗腐病（Fusarium ear rot， FER）是玉米（Zea mays L.）中一种常见的真菌病害。抗性种质资源在栽培玉米中是罕见的；然而，大刍动物（Z. mays ssp.）。parviglumis和Z. mays。作为玉米的野生型种，双扇蚊（Diploperennis）有可能提供新的抗性等位基因来源，以增强现代玉米的抗病性。因此，本研究的目的是确定对FER具有显著抗性的有利等位基因。利用玉米自交系B73和Zheng58与两种不同的大刍动物Z. diploperennis和Z. parviglumis杂交，获得了3个BC2F8重组自交系（RILs），并进行了抗性筛选。结果表明，双扇叶扁豆和细小扁豆叶片对黄萎病病菌的抗性高于B73和郑58。叶片和穗部对黄萎病菌的抗性在不同ril间无显著性差异。在B73 ×双扇花（BD）和Zheng58 × parviglumis （ZP）群体中，抗性与产量呈正相关，部分原因是抗性和产量性状的数量性状位点（qtl）位于较近的位置。在BD和ZP群体中鉴定出4个重合的qtl （qFERbd5.177、qFERbd10.140、qFERzp4.066和qFERzp5.116）和2个高度可靠的抗产增效qtl (qFERbd10.140和qFERzp4.066)，为在不降低产量的情况下选育ferbd抗性开辟了可能。
Fusarium ear rot (FER) is a common fungal disease in maize (Zea mays L.) caused by Fusarium verticillioides. Resistant germplasm resources for FER are rare in cultivated maize; however, teosintes (Z. mays ssp. parviglumis and Z. mays ssp. diploperennis), which are wild-type species of maize, have the potential to offer a novel source of resistance alleles to enhance pathogen resistance in modern maize. Therefore, the aim of this study was to identify favorable alleles that confer significant levels of resistance toward FER. Three populations of BC2F8 recombinant inbred lines (RILs) were developed by crossing two different teosintes, Z. diploperennis and Z. parviglumis, with maize inbred lines B73 and Zheng58, and were screened for FER resistance. We found that Z. diploperennis and Z. parviglumis had higher resistance toward F. verticillioides in the leaves than B73 and Zheng58. However, the resistance toward F. verticillioides in the leaf and ear was unrelated among RILs. FER resistance was positively correlated with grain yield in the B73 × diploperennis (BD) and Zheng58 × parviglumis (ZP) populations, partly because the quantitative trait loci (QTLs) of FER resistance and yield traits were located close together. Four coincident QTLs (qFERbd5.177, qFERbd10.140, qFERzp4.066, and qFERzp5.116) and two highly reliable resistance-yield synergistic QTLs (qFERbd10.140 and qFERzp4.066) were identified in the BD and ZP populations, opening up the possibility of breeding for FER resistance without reducing yield.
登录
查看更多内容
玉米穗轴对轮叶镰刀菌抗性的遗传分析：保护玉米免受穗腐病的又一步
影响因子：
5.4
作者：
Mu, Cong;Gao, Jingyang;Wu, Jianyu
通讯作者：
Wu, Jianyu
影响因子：
4.6
作者：
Ju M;Zhou Z;Mu C;Zhang X;Gao J;Liang Y;Chen J;Wu Y;Li X;Wang S;Wen J;Yang L;Wu J
通讯作者：
Wu J
DOI：
10.1534/g3.116.034561
发表时间：
2016-12-07
期刊：
G3 (Bethesda, Md.)
影响因子：
--
作者：
Chen J;Shrestha R;Ding J;Zheng H;Mu C;Wu J;Mahuku G
通讯作者：
Mahuku G
DOI：
10.1073/pnas.052125199
发表时间：
2002-04-30
影响因子：
11.1
作者：
Matsuoka, Y;Vigouroux, Y;Doebley, J
通讯作者：
Doebley, J
影响因子：
2.8
作者：
Folcher, Laurent;Jarry, Marc;Regnault-Roger, Catherine
通讯作者：
Regnault-Roger, Catherine