CHROMOSOMAL LOCATION OF GENES FOR STRIPE RUST RESISTANCE IN SPRING WHEAT CULTIVARS COMPAIR, FIELDER, LEE, AND LEMHI AND INTERACTIONS OF ANEUPLOID WHEATS WITH RACES OF PUCCINIA-STRIIFORMIS
CHROMOSOMAL LOCATION OF GENES FOR STRIPE RUST RESISTANCE IN SPRING WHEAT CULTIVARS COMPAIR, FIELDER, LEE, AND LEMHI AND INTERACTIONS OF ANEUPLOID WHEATS WITH RACES OF PUCCINIA-STRIIFORMIS
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DOI：
10.1094/phyto-85-375
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发表时间：
1995-03-01
期刊：
影响因子：
3.2
通讯作者：
LINE, RF
中科院分区：
文献类型：
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作者：
CHEN, XM;JONES, SS;LINE, RF
春小麦（Triticum aestivum）品种Lemhi有一个基因，而品种Lee、Compair和Fielder各有两个抗条纹锈病基因，条纹锈病是由条纹锈病引起的。为了确定基因的染色体位置，将这些品种与易感二体中华春和一组21个中华春非整倍体杂交。单体Fl植株细胞学鉴定，在温室中生长，自花授粉产生F-2种子。将F-2幼苗及其亲本接种选定的北美纹状线虫小种。结果证实，菲尔德的Yr6位于染色体7B上，Compair的Yr8位于染色体2D上；结果表明，Lemhi的YrLem位于1B染色体上，Lee的YrLel位于4D染色体上，Lee的YrLe2位于6D染色体上，Compair的YrCom位于5B染色体上，Fielder的YrFie位于6D染色体上。我们在北美人种中检测到的李氏基因都不是Yr7。我们建议将YrCom命名为Yr19， YrFie命名为Yr20， YrLem命名为Yr21， YrLel命名为Yr22， YrLe2命名为Yr23。
The spring wheat (Triticum aestivum) cultivar Lemhi has one gene, and cultivars Lee, Compair, and Fielder have two genes each for resistance to stripe rust, caused by Puccinia striiformis. To determine the chromosomal locations of the genes, the cultivars were crossed with susceptible disomic Chinese Spring and a set of 21 Chinese Spring aneuploids. Monosomic Fl plants were cytologically determined, grown in a greenhouse, and self pollinated to produce F-2 seed. F-2 seedlings and their parents were inoculated with selected North American races of P. striiformis. The results confirmed that Yr6 in Fielder is on chromosome 7B and Yr8 in Compair is on chromosome 2D; and they show that YrLem in Lemhi is on chromosome 1B, YrLel in Lee is on chromosome 4D, YrLe2 in Lee is on chromosome 6D, YrCom in Compair is on chromosome 5B, and YrFie in Fielder is on chromosome 6D. None of the Lee genes that we detected with North American races is Yr7. We propose official gene designations Yr19 for YrCom, Yr20 for YrFie, Yr21 for YrLem, Yr22 for YrLel, and Yr23 for YrLe2.