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一起来看!北林大科研新进展!
基于论文中的研究结果,研究提出了一个牡丹与芍药杂交形成伊藤杂种牡丹的遗传模型(图4):在牡丹的减数分裂过程中,由于减数分裂Ⅰ期同源染色体未能正常分离,产生了含有两套异质性染色体的2n雄配子。该配子与芍药通过正常减数分裂产生的1n雌配子结合,形成了三倍 ...
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