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众所熟知,在许多二倍体物种中,各种三体的n+1配子的传递比率大大低于理论上予期的50%。三体中额外染色体传递比率的减少是由多种因素造成的。但是,对于不同物种和不同三体来说,各种因素的相对重要性可能有所不同。除少数例外的情
It is well known that in many diploid species the transfer rates of n + 1 gametes for various trisomies are well below the theoretically expected 50%. The reduction of the extra chromosomal transfer rate in the trisomies is caused by a variety of factors. However, the relative importance of various factors may vary for different species and different trisomies. Except for a few exceptions