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The egg cell is preferentially fertilized in Arabidopsis double fertilization

Li, Ling ; Hou, Saiying ; Xiang, Wei ; Song, Zihan ; Wang, Yuan ; Zhang, Li ; Li, Jing ; Gu, Hongya ; Dong, Juan ; Dresselhaus, Thomas ; Zhong, Sheng ; Qu, Li‐Jia



Abstract

In flowering plants (angiosperms), fertilization of the egg cell by one sperm cell produces an embryo, whereas fusion of a second sperm cell with the central cell generates the endosperm. In most angiosperms like Arabidopsis, a pollen grain contains two isomorphic sperm cells required for this double fertilization process. A long-standing unsolved question is whether the two fertilization events ...

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