AI Article Synopsis
- Labile sex expression is common in dioecious plants, but the genetic mechanisms behind it are not well understood.
- A study focused on a maleness-promoting gene showed that it produces long non-coding RNAs (lncRNAs) that encourage male characteristics; these lncRNAs have multiple activating elements.
- Although female poplar trees lack the male-specific gene, they contain similar partial sequences that, when expressed, can promote maleness, suggesting that MSL-lncRNAs may influence sex variation in female poplars.
Article Abstract
Labile sex expression is frequently observed in dioecious plants, but the underlying genetic mechanism remains largely unknown. Sex plasticity is also observed in many species. Here we carried out a systematic study on a maleness-promoting gene, , detected in the genome. Our results showed that both strands of contained multiple -activating elements, which generated long non-coding RNAs (lncRNAs) promoting maleness. Although female did not have the male-specific gene, a large number of partial sequences with high sequence similarity to this gene were detected in the female poplar genome. Based on sequence alignment, the sequence could be divided into three partial sequences, and heterologous expression of these partial sequences in confirmed that they could promote maleness. Since activation of the sequences can only result in female sex lability, we propose that MSL-lncRNAs might play a role in causing sex lability of female poplars.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10177001 | PMC |
| http://dx.doi.org/10.1093/hr/uhad042 | DOI Listing |
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