滨藜叶猪毛菜性别决定的机制
Mechanism of sex determination inRumex hastatulus Baldw.
机构信息
Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland.
出版信息
Theor Appl Genet. 1971 Jan;41(7):320-6. doi: 10.1007/BF00577104.
The results presented indicate that the sex determination mechanism in the Texas race ofR. hastatulus ♀ 2n = 10 (XX + 8A); ♂ 2n = 10 (XX + 8A)] is intermediate between theX/Y andX/A systems. In this race, sex is determined to some extent by theX/A balance, but theY chromosome also affects sex expression, maleness or intersexuality being correlated with different ratios ofX andY chromosomes.The results obtained for the Texas race are fully compatible with data presented by Smith (1963) for the North Carolina race [♀ 2n = 8 (XX + 6A); ♂ 2n = 9 (XX 1 Y 2 + 6A)]. It may be concluded that evolution of the karyotype in this species is not accompanied by changes in the mechanism of sex determination.
结果表明，得克萨斯州 R. hastatulus 种群♀ 2n = 10（XX + 8A）；♂ 2n = 10（XX + 8A）]的性别决定机制介于 X/Y 和 X/A 系统之间。在这个种群中，性别在一定程度上受 X/A 平衡的决定，但 Y 染色体也会影响性别表达，雄性或雌雄同体与 X 和 Y 染色体的不同比例相关。得克萨斯州种群的结果与史密斯（1963 年）对北卡罗来纳州种群[♀ 2n = 8（XX + 6A）；♂ 2n = 9（XX1Y2 + 6A）]的数据完全一致。可以得出结论，该物种的核型进化并没有伴随着性别决定机制的变化。
Zotero 插件