Plant Diversity ›› 2000, Vol. 22 ›› Issue (02): 1-3.

• Articles •    

Cytological Studies of Hybrids of Roegneria ciliaris with R.alashanica and R.magnicaespes(Poaceae:Triticeae)

ZHANG Xin-Quan,YEN Chi,YANG Jun-Liang,ZHANG You-Liang,WU Bi-Hua   

  1. Department of Forage and Range,College of Animal Science and Technology,Sichuan University,Yaan 625014
  • Online:2000-04-25 Published:2000-04-25

Abstract: In order to investigate the relationships between Roegneria.ciliaris(Trin.)Nevski and R.alashanica Keng,and between R.ciliaris and R.magnicaespes D.F.Cui.R.ciliaris(Trin.)Nevski was crossed with the other two species,through the aid of embryo rescue. Hybrids were obtained from these two combinations.Chromosome pairing behavior of parents an dhybrids was observed at metaphase I of pollen mother cells. Meiotic configuratons were 10.62Ⅰ+8.17Ⅱ+0.32Ⅲ+0.02Ⅳ for R.ciliaris×R.magnicaespes and 18.00Ⅰ+4.76Ⅱ+0.16Ⅲ for R.ciliaris ×R.magnicaespes;c-value of the two hybrids were 0.44 and 0.21,respectively.

Key words: Genome analysis, Interspecific hybrid, Roegneria