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

An intergeneric hybrid was successfully developed between Oryza sativa L. (IRRI 154) and Leersia perrieri (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 F(1) hybri...

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Detalles Bibliográficos
Autores principales: Ballesfin, Ma. LaRue E., Vinarao, Ricky B., Sapin, Janice, Kim, Sung-Ryul, Jena, Kshirod K.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Japanese Society of Breeding 2018
Materias:
Research Paper
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6198897/
https://www.ncbi.nlm.nih.gov/pubmed/30369822
http://dx.doi.org/10.1270/jsbbs.18045
Descripción
Sumario:An intergeneric hybrid was successfully developed between Oryza sativa L. (IRRI 154) and Leersia perrieri (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 F(1) hybrid 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 L. perrieri. Cytological analysis revealed highly non-homology between chromosomes of the two species as the F(1) plants showed 24 univalents without any chromosome pairing. The F(1) hybrid plant was further confirmed by PCR analysis using the newly designed 11 indel markers showing polymorphism between O. sativa and L. perrieri. This intergeneric hybrid will open up opportunities to transfer novel valuable traits from L. perrieri into cultivated rice.

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