There are no genders in the Pure Land. Also, there is no need for sex and marriage there. (sex and marriages only exist in a low dimensional world like Earth).
In the Pure Land, all beings are born through transformation from the lotus flowers, with golden indestructible bodies (which means there is no more gender). All beings look the same with no differences; one can truly realize the Oneness in all beings as there is no separation at all. All beings have perfect faculties and pure thoughts, and all are enlightened. Even for those who currently aren't enlightened on Earth, when they go to the Pure Land they will soon realize enlightenment.
You can watch Jiawen’s video here: