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Species-specific regulatory pathways of small RNAs play sophisticated roles in flower development in Dimocarpus longan Lour.
- Source :
-
Horticulture Plant Journal . Apr2023, Vol. 9 Issue 2, p237-249. 13p. - Publication Year :
- 2023
-
Abstract
- Flower development plays vital role in horticultural plants. Post-transcriptional regulation via small RNAs is important for plant flower development. To uncover post-transcriptional regulatory networks during the flower development in Dimocarpus longan Lour. 'Shixia', an economically important fruit crop in subtropical regions, we collected and analyzed sRNA deep-sequencing datasets and degradome libraries Apart from identifying miRNAs and phased siRNA generating loci (PHAS loci), 120 hairpin loci, producing abundant sRNAs, were identified by in-house protocols. Our results suggested that 56 miRNA-target pairs, 22 21-nt-PHAS loci, and 111 hairpin loci are involved in posttranscriptional gene silencing during longan reproductive development. Lineage-specific or species-specific post-transcriptional regulatory modules have been unveiled, including miR482-PHAS and miRN15. miR482-PHAS might be involved in longan flower development beyond their conserved roles in plant defense, and miRN15 is a novel miRNA likely associated with a hairpin locus (HPL-056) to regulate strigolactone receptor gene DWARF14 (D14) and the biogenesis of phasiRNAs from D14. These small RNAs are enriched in flower buds, suggesting they are likely involved in post-transcriptional regulatory networks essential for longan flower development via the strigolactone signaling pathway. [ABSTRACT FROM AUTHOR]
- Subjects :
- *NON-coding RNA
*FLOWER development
*LONGAN
*GENETIC transcription
*BUDS
Subjects
Details
- Language :
- English
- ISSN :
- 20959885
- Volume :
- 9
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Horticulture Plant Journal
- Publication Type :
- Academic Journal
- Accession number :
- 163353708
- Full Text :
- https://doi.org/10.1016/j.hpj.2022.12.004