ArticleFunctional & integrative genomics2022
Development and verification of SSR markers from drought stress-responsive miRNAs in Dongxiang wild rice (Oryza rufipogon Griff.).
Article in Functional & integrative genomics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- Prognostic and immune microenvironment analysis of cuproptosis-related LncRNAs in breast cancer.Functional & integrative genomics · 2023Trial
- Population structure and genetic differentiation analyses reveal high level of diversity and allelic richness in crop wild relatives of AA genome species of rice (Oryza sativa L.) in India.Journal of applied genetics · 2023Article
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6 authors.
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Abstract
Rice production worldwide has continued to decline due to various environmental stresses, with drought stress being a prominent factor, as rice is a semi-aquatic plant. Thus, development of drought stress-resistant rice varieties is of great importance for rice production. In our previous study, we found that microRNAs (miRNAs) play a crucial role in the response to drought stress in Dongxiang wild rice (DXWR) (Oryza rufipogon Griff.). Developing drought stress-responsive miRNA-based single sequence repeat (SSR) markers for DXWR will be of great value for the efficient identification and utilization of miRNA genes to breed drought stress-resistant rice varieties. In this study, ninety-nine novel SSR markers were developed based on the drought stress-responsive miRNAs of DXWR. These markers were distributed in all 12 rice chromosomes, and most were in chromosomes 2 and 6, with di- and tri-nucleotides being the most abundant repeat motifs. Twelve out of fourteen synthesized markers displayed high levels of genetic diversity in the genomes of three populations of DXWR and 40 modern rice varieties worldwide. The number of alleles per locus ranged from 2 to 7, with an average of 4.67; the genetic diversity index ranged from 0.21 to 0.76, with an average of 0.58; and the polymorphism information content value ranged from 0.18 to 0.72, with an average of 0.53. These novel molecular markers developed from the drought stress-responsive miRNAs of DXWR could be additional tools for mapping elite miRNA genes and breeding drought stress-resistant rice varieties.
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