羊柴等四种沙生灌木的核型研究

STUDIES ON THE CARYOTYPE OF FOUR PSAMMOPHILOUS SHRUBS SUCH AS HEDYSARUM LEAVE ETC.

本文对羊柴等四种沙生饲用灌木的染色体数目及核型进行研究。结果表明：羊柴核型为２＿ｎ＝２ｘ＝１６＝１６＿ｍ（２ＳＡＴ）；花棒核型为２＿ｎ＝２＿ｘ＝１６＝１６＿ｍ（２ＳＡＴ）；柠条为２＿ｎ＝２＿ｘ＝１６＝１６＿ｍ；红皮沙拐枣为２＿ｎ＝２＿ｘ＝３８＝２Ｍ＋４＿ｍ（２ＳＡＴ）＋８ｓｍ＋２ｓｔ＋２２ＴＴ。

The chromosome numbers and caryotypes of four psammophilous forage shrubswere studied, The results showed that the caryotypepe of Hedysarum leave is 2n=2x=16=16m(2SAT).H. scoparium 2n= 2x= 16= 16m(2SAT). Caragana korshinskii 22x= 16=16m Calligohum rubicundum 2n= 2x= 38=2N+4m(2SAT)+8sm+2st+22T.