Ningxia;
University;
,Yinchuan;
China750021;
Ningxia;
Key;
Laboratory;
of;
Agro-Biotechnology;
Academy;
of;
Agriculture;
and;
Forestery;
Sciences,;
Yinchuan;
China750021;
International;
Center;
for;
Maize;
and;
Wheat;
Improvement;
A.P.;
6-641;
Mexico;
D.F.;
06600,;
Mexico;
SupAgro;
Montpellier,;
Montpellier;
Cedex;
France34060;