STUDIES ON PHOTOPERIOD-SENSITIVE CYTOPLASMIC MALE STERILITY IN WHEAT Mapping of QTL for Fertility Restoration of HL-type Cytoplasmic Male Sterility in Rice(Oryza sativa L.) Programmed Cell Death during Abortion of Microspore in S-type Cytoplasmically Male-sterile Maize Editing Sites in Transcript of Mitochondrial atp6 Gene of Male Sterile Line with Aegilops kotschyi Cytoplasm in Wheat