As the wild relative genera of sugarcane, Narenga porphyrocoma and Erianthus rockii are becoming more potential germplasm sources due to valuable traits in sugarcane breeding. Many previous studies were performed to integrate the desirable characters from wild species into modern sugarcane cultivars. Until now, the lack of fertility in hybrids is still a thorny problem in most cases. In our present study, a rare hybrid between E. rockii (2n = 30) and N. porphyrocoma (2n = 30) had been developed for the first time. The molecular primers MSSCIR66, SMC720BS and SMC597CS were successfully applied to identify the putative F₁ hybrids. Besides, the chromosome composition and transmission have also been reported to screen the true F₁ hybrids via genomic in situ hybridization. From the breeding point of view, the implications of gene introgression from N. porphyrocoma and E. rockii are discussed.

中文翻译：

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作为甘蔗育种和遗传研究新种质的Erianthus rockii×Narenga porphyrocoma属杂种的生产，鉴定和鉴定

作为甘蔗的野生近缘属，由于甘蔗育种中的宝贵性状，Narenga porphyrocoma和Erianthus rockii正成为更多潜在的种质资源。进行了许多先前的研究，以将野生物种的理想特性整合到现代甘蔗品种中。到目前为止，在大多数情况下，杂交种的缺乏生育能力仍然是一个棘手的问题。在我们目前的研究中， 首次开发了一种在罗氏肠杆菌（2 n  = 30）和猪卟啉单胞菌（2 n = 30）之间的罕见杂种。分子引物MSSCIR66，SMC720BS和SMC597CS已成功用于鉴定推定的F ₁杂种。此外，也已经报道了染色体组成和传递通过基因组原位杂交筛选真正的F ₁杂种。从育种的角度，讨论了猪卟啉单胞菌和罗氏肠杆菌的基因渗入的含义。