Development of an intergeneric hybrid between Oryza sativa L. and Leersia perrieri (A. Camus) Launert

An intergeneric hybrid was successfully developed between\ua0Oryza sativa\ua0L. (IRRI 154) and\ua0Leersia perrieri\ua0(A. Camus) Launert using embryo rescue technique in this study. A low crossability value (0.07%) implied that there was high incompatibility between the two species of the hybrid. The F1\ua0hybrid showed intermediate phenotypic characteristics between the parents but the plant height was very short. The erect plant type resembled the female parent IRRI 154 but the leaves were similar to\ua0L. perrieri. Cytological analysis revealed highly non-homology between chromosomes of the two species as the F1\ua0plants showed 24 univalents without any chromosome pairing. The F1\ua0hybrid plant was further confirmed by PCR analysis using the newly designed 11 indel markers showing polymorphism between\ua0O. sativa\ua0and\ua0L. perrieri. This intergeneric hybrid will open up opportunities to transfer novel valuable traits from\ua0L. perrieri\ua0into cultivated rice

Regulation of corneal keratin-12 gene expression by the human Krüppel-like transcription factor 6.

International audienceThe keratin-12 (K12) protein is essential for the integrity of the corneal epithelium. This study was conducted to investigate the possible involvement of Krüppel-like factor 6 (KLF6) in the corneal regulation of K12 gene expression, in view of the presence of one KLF6 potential binding site in the human K12 promoter and the known role of KLF6 in regulating keratin gene expression