In nature conditions , without the injection of the extraneous hormone , the females and males of f _ 9 - f _ 12 could mate each other to produce new next generation of tetraploids . with the stable genetic tetraploidy and the fertility in the nature environments , this allotetraploid population possessed the key factors to form a new species with 200 chromosomes F _ 9 ? f _ ( 12 )染色体数目的稳定性和正常的性腺结构以及自然条件下的生殖传代行为，说明该异源四倍体鲫鲤已成为一个染色体数目为4n = 200 、遗传性状稳定的新型四倍体鱼群体，具备形成一个新的种群所需的关键因素。
2.
In some cases the observed segregation ratios even allowed us to clearly determine that m . xiaojinesis is a autotetraploid plants , at least is a isosyndetic allotetraploid . these were the cases of 32 m . xiaojinesis - specific markers and 50 markers present in both parents , which fit 5 : 1 and 11 : 1 ratio respectively . since these cases happened were owing to m . xiaojinesis ' s duplex loci 50个双亲共有标记和32个小金海棠特有标记分别适合11 ： 1和5 ： 1的分离系数，由这两个系数可以推测，小金海棠可能是同源四倍体，至少是同源异源四倍体，因这两个系数都表明其产生是源于小金海棠的双式位点。
3.
2 . the gynogenesis of allotetraploid hybrids without the treatment to double the chromosome number , the diploid eggs produced by the females of tetraploid hybrids of red crucian carpx common carp were able to develop to living diploid fish after subjecting to activation of the uv - irradiated sperm 人工诱导异源四倍体鲫鲤的雌核发育异源四倍体鲫鲤能产生二倍体卵子，用uv处理镜鲤的精子，不进行染色体的加倍处理，能获得二倍体雌核发育鱼，通过冷休克对“受精卵”进行处理，仍然获得了二倍体雌核发育鱼。
4.
The space distribution of pigment gland density on eleven places was analyzed by allotetraploid of ( g . arboreum g . bickii ) and varieties with pigment gland of g . hirsutum g . barbadense and the progeny population which is crossed by allotetraploid of ( g . arboreum g . bickii ) g . hirsutum and ( g . arboreum g . bickii ) g . barbadense 摘要利用（亚洲棉比克氏棉）异源四倍体和陆地棉、海岛棉有色素腺体品种以及由（亚洲棉比克氏棉）异源四倍体为母本，以陆地棉和海岛棉有色素腺体品种为父本，组配成的杂交后代群体，对植株上十一个部位色素腺体密度在群体内的分布进行了初步分析。
5.
The formation of the population of the allotetraploid hybrids of red crucian carp and common carp is the first case in the world which both the female and the male of allotetraploids are fertile , they are the good materials for studying the biological characteristic of tetraploid animals , this paper reports the hereditary characters of allotetraploids including the stability of hereditary gynogenesis and androgenesis 异源四倍体鲫鲤是世界上首例人工培育的两性可育的四倍体鱼，这为研究四倍体的生物学特性提供了良好的实验材料，本文对异源四倍体鲫鲤的遗传特性进行了研究，主要包括其遗传稳定性、雌核发育、雄核发育方面的研究。
