Cytogenetics of intergenomic rice hybrids produced between cultivated rice,(O. sativa cv.
Manshara and Kalo Jhinuwa) and Nepalese wild species, O. officinalis (2n= 24, CC) was …

The objective of this study was to explore the heterosis of partial interspecific hybrids
between African rice (Oryza glaberrima Steud.) and Asian rice (Oryza sativa L.) and its …

Fertility barriers, which are common in many wide crosses, can hinder efforts to introgress
genes. In this study, we examined an intermated Oryza sativa/Oryza longistaminata …

Background Reproductive isolation between rice of different ploidy levels is manifested as
endosperm and embryo abortion in seeds produced by interploidy crosses. Genomic …

Genetic variability is the most important pre-requisites for any successful crop improvement
programme. It has been aurged that one of the reasons for failure to achieve a major …

To improve the width of compatibility for overcoming various sterilities in inter‐subspecific
hybrid rice, some elite lines combining several sterility‐neutral genes were developed and …

The accumulation of independent mutations over time in two populations often leads to
reproductive isolation. Reproductive isolation between diverging populations may be …

Background To investigate plant hybrid sterility, we studied interspecific hybrids of two
cultivated rice species, Asian rice (Oryza sativa) and African rice (O. glaberrima). Male …

Understanding the evolutionary forces in speciation is a central goal in evolutionary biology.
Asian cultivated rice has two subspecies, indica and japonica, but the underlying …

Hybrid sterility (HS) between Oryza sativa (Asian rice) and O. glaberrima (African rice) is
mainly controlled by the S1 locus. However, our limited understanding of the HS mechanism …