| Autor: |
Li Q; College of Agriculture, Inner Mongolia Agricultural University, Hohhot 010000, China.; Key Laboratory of Crop Cultivation and Genetic Improvement in Inner Mongolia Autonomous Region, College of Agronomy, Inner Mongolia Agricultural University, Hohhot 010000, China.; Inner Mongolia Autonomous Region College Crop Germplasm Resources Protection and Utilization Engineering Research Center, Inner Mongolia Agricultural University, Hohhot 010000, China., Li D; Key Laboratory of Herbage & Endemic Crop Biology, Ministry of Education, School of Life Sciences, Inner Mongolia University, Hohhot 010000, China., Guo S; College of Agriculture, Inner Mongolia Agricultural University, Hohhot 010000, China.; Key Laboratory of Crop Cultivation and Genetic Improvement in Inner Mongolia Autonomous Region, College of Agronomy, Inner Mongolia Agricultural University, Hohhot 010000, China.; Inner Mongolia Autonomous Region College Crop Germplasm Resources Protection and Utilization Engineering Research Center, Inner Mongolia Agricultural University, Hohhot 010000, China., Yu X; College of Agriculture, Inner Mongolia Agricultural University, Hohhot 010000, China.; Key Laboratory of Crop Cultivation and Genetic Improvement in Inner Mongolia Autonomous Region, College of Agronomy, Inner Mongolia Agricultural University, Hohhot 010000, China.; Inner Mongolia Autonomous Region College Crop Germplasm Resources Protection and Utilization Engineering Research Center, Inner Mongolia Agricultural University, Hohhot 010000, China. |
| Abstrakt: |
Foxtail millet is one of the oldest crops, and its endosperm contains up to 70% of starch. Grain filling is an important starch accumulation process associated with foxtail millet yield and quality. However, the molecular mechanisms of grain filling in foxtail millet are relatively unclear. Here, we investigate the genes and regulated miRNAs associated with starch synthesis and metabolism in foxtail millet using high-throughput small RNA, mRNA and degradome sequencing. The regulation of starch synthesis and quality is carried out mainly at the 15 DAA to 35 DAA stage during grain filling. The DEGs between waxy and non-waxy foxtail millet were significant, especially for GBSS . Additionally, ptc-miR169i_R+2_1ss21GA, fve-miR396e_L-1R+1, mtr-miR162 and PC-5p-221_23413 regulate the expression of genes associated with the starch synthesis pathway in foxtail millet. This study provides new insights into the molecular mechanisms of starch synthesis and quality formation in foxtail millet. |
