Comparative transcriptome profiling reveals that brassinosteroid-mediated lignification plays an important role in garlic adaption to salt stress

Garlic (Allium sativum L.) is an economically important vegetable crop which used worldwide for culinary and medicinal purposes. Soil salinity constrains the yield components of garlic. Understanding responsive mechanism garlic to crucial improve its tolerance. To address this problem, two cultivars differing in salt tolerance were investigate long-term adaptive responses stress at phenotype transcriptome levels. Phenotypic analysis showed four-week significantly decreased salt-sensitive cultivar. Transcriptomes garlics de novo assembled mined transcriptional activities regulated by stress. The results that photosynthesis, energy allocation, secondary metabolism commonly enriched both sensitive tolerant genotypes. Moreover, distinct patterns also observed between Compared with salt-tolerant genotype, most transcripts encoding enzymes phenylpropanoid biosynthesis pathway coordinately down resulting alternation content composition lignin. Meanwhile, brassinosteroid (BR) systematically Taken together, these suggested BR-mediated lignin accumulation possibly plays role adaption These findings expand understanding