Analysis of Genetic Traits and Screening of Molecular Marker in Two Wheat Varieties
LIU Yan
TIAN Rongrong
WANG Tianyou
LIU Fenglou
KANG Ling
LIU Shengxiang
ZHANG Xiaogang
LIU Ping
WANG Zhangjun
Abstract：In order to clarify genetic traits of Ningchun 4 and Secale cereal L,the two varieties were identified by agronomic traits,quality traits,disease resistance,molecular markers.The results showed that for Ningchun 4,plant height was lower(86.70 cm),ear stem and panicle length were longer(36.60 cm and 10.95 cm,respectively),grain weight per spike and thousand seed weight were heavier(1.95 g and 46.61 g,respectively),spikelet number,kernels per spike and economic coefficient were in the middle compared with Secale cereal L.Secale cereal L(Ⅰ and Ⅱ) had more effective tillers than Ningchun 4 (5.10 and 6.60,respectively),and was highly resistant to powdery mildew,moderately resistant to stripe and leaf rust.In main quality traits,for Ningchun 4 grain full index was larger(0.71),water content was higher(10.23％),dough stability time was longer(9.45 min),its grain hardness,water absorption ratio and starch recovery end point value were in the middle.But Secale cereal L had higher average protein content (16.21％),gluten content(35.76％),Zeleny sedimentation(40.27 mL),and longer time for paste formation (2.38 min).127 SSR and 7 ISSR markers were screened in two varieties,and markers of 12 reported related genes were identified.The two varieties all carried Wx-A1a/b,Wx-B1a/b,Wx-D1a/b,Dy12,Pm2,Pm4,Pm6,Sr31,and Ningchun 4 also carried Psy-A1,Secale cereal L had Pm16、Yr2 and gibberellic resistance gene QFhs.ndsu-3BS.
Keywords：wheat(Triticum aestivum L)Secale cereal LNingchun 4agronomic traitquality traitdisease resistancemolecular marker-assisted selection
Publication Date：2017-10-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：8( 13-20 )