^pof;
Sericulture;
and;
Systems;
Biology,;
Southwest;
University,;
Chongqing;
400715,;
China;
^pof;
Genetic;
Resources,;
Graduate;
School;
of;
Bioresource;
and;
Bioenvironmental;
Sciences,;
Kyushu;
University;
Fukuoka;
812-8581,;
Japan;
^pof;
Agricultural;
and;
Life;
Sciences,;
Chongqing;
University,;
Chongqing;
400044,;
China;