heterogenesis是什么意思

用法例句

Molecular cytogenetic study on the alien substitution lines of Triticum-Psathyrostachys;

普通小麦-华山新麦草异代换系的分子细胞遗传学研究

Reason and maintenance of the male sterility in VE161 alien substitution line;

VE161异代换系雄性不育原因的探讨及其保持

Some relatively stable alien addition line, alien substitution line and translocationline were obtained by the means of formation and cytology indentifyng and directed selecting the backcross progenies,Which were backcrossed intergenous F1 hybrids betweencommon wheat and cultivated barley bachcross with common wheat.

对其连续多年套袋自交、测交、细胞学鉴定和定向选择，从自交后代群体中筛选出一部分异附加系、异代换系和易位系等具有大麦某些特性的小麦新类型，并系统地对单体和二体附加系自交后代染色体的分离行为作了遗传分析。

Cultivation of IBDV field isolates adapted in chicken embryo and comparation of VP2 gene with each generation as well as the pathogenicity;

IBDV不同野毒株鸡胚传代及各变异代次回归鸡后的致病性

Discussion on "Borrowing Talents from Other Nations" and Its Influence on the Literary Progress of Liao and Jin Dynasty;

论“借才异代”及其对辽金文学进程的影响