Across geographic gradients, Levins expects allopatric races or coenospecies exist.
穿过地理梯度, 莱文斯预料有分布区不重叠的小种或近群种.
The temptation to recognize apomictic microspecies ( agamospecies ) as taxonomic species is far greater.
把无融合生殖小种 ( 无性种 ) 作为分类学上的种来承认,这点具有更大的迷惑性.
The races can be further subdivided.
这些生理小种还可以进一步再分.
Homozygous races do not segregate on selfing.
自体受精不能分离纯合的生理小种.
Holmes crossed two compatible races of ceratocystis ulmi, the causal agent of Dutch elm disease.
霍姆斯曾把荷兰榆病害的致病因子,长喙壳的两个亲和小种杂交.
Primer OPM - 15 was used to identify Races 1 and 4.
引物OPM-15能用来鉴定1号和4号生理小种.
Quarantining FOC 4 is the key method to avoid banana fusarium wilt spreading.
对香蕉枯萎病菌4号小种实施检疫控制是防止其扩散的关键.
Seminal majority, dinky, seed coat has fossa opening , endosperm flesh is qualitative.
种子多数, 极小, 种皮有小窝孔, 胚乳肉质.
ZB group differentiated greatly including 14 races.
ZB群菌株分化最大,共出现了14个生理小种.
The result indicated that the of similarity coefficient among the 33 isolates was from 0.53 ~1.00.
通过聚类分析探讨了供试小种间的亲缘关系,RAPD指纹 聚类分析表明,33个供试菌系两两之间的相似系数变幅为0.53～1.00.
Types of tea are small mountains of cable fat, tight end straight round, color Zewu Run.
正山小种红茶条索肥壮, 紧结圆直, 色泽乌润.
Seminal minimum, seed coat sometimes outspread the accessary system that becomes one end state.
种子极小, 种皮有时延伸成一尾状的附属体.
Preliminary identification results for the C 2 strain Fengyang small species, Huaiyuan strain C 1 race.
初步鉴定结果为凤阳菌株为C2小种, 怀远菌株为C1小种.
The results show that the Heihe region Cercospora Race greater the number and frequency changes.
结果表明黑河地区灰斑病生理小种数目和频率有较大变化.