Morphologic and cytological characteristics of hybrid F1 between E. canadensis and E. sibidcus were studied. The results showed that hybrid F1 were obviously exceeded parents in plant growth vigor, and spike type of F...Morphologic and cytological characteristics of hybrid F1 between E. canadensis and E. sibidcus were studied. The results showed that hybrid F1 were obviously exceeded parents in plant growth vigor, and spike type of F1 was between parents. The karyotype formula of hybrid F1 which was true hybrid was 2n =4x=16M ＋ 10m ＋2st. At meiotic anaphase, chromosome lagging behaviors were frequently observed. The frequency of lagging chromosomes of F1 was 87.37%. At meiotic metaphase, there were many univalents and multivalents, and the rod bivalent formed greatly.展开更多
基金Supported by Research on Distant Hybridization Breeding of Forage(2008BADB3B02)in the Eleventh Five-year Plan Periodthe Major Scientific and Technical Project of Inner Mongolia Autonomous Region,"Products Development of High Quality Adequet Grass"~~
文摘Morphologic and cytological characteristics of hybrid F1 between E. canadensis and E. sibidcus were studied. The results showed that hybrid F1 were obviously exceeded parents in plant growth vigor, and spike type of F1 was between parents. The karyotype formula of hybrid F1 which was true hybrid was 2n =4x=16M ＋ 10m ＋2st. At meiotic anaphase, chromosome lagging behaviors were frequently observed. The frequency of lagging chromosomes of F1 was 87.37%. At meiotic metaphase, there were many univalents and multivalents, and the rod bivalent formed greatly.
