Ultrastructural Aspects of Plasmodesmata and Cytoplasmic Bridges During Spermatogenesis in Funaria hygrometrica Resistant effect of water decoction of root of Crataegus cuneata on male infertility induced by GTW in rats Yak HSFY Gene Cloning and Structure Anlysis An Ultrastructural Study of the Spermatogenesis of the Fern Pteris fauriei (Pteridaceae) Small Non-coding RNA and Male Sterility