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Article

Genome-Wide Analysis, Evolutionary History and Response of ALMT Family to Phosphate Starvation in Brassica napus

by 1,2, 3, 1,2, 2 and 1,2,*
1
National Key Laboratory of Crop Genetic Improvement, Huazhong Agricultural University, Wuhan 430070, China
2
Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Microelement Research Centre, Ministry of Agriculture and Rural Affairs, Huazhong Agricultural University, Wuhan 430070, China
3
Department of Plant Breeding and Genetics, Gomal University, Dera Ismail Khan 29220, Pakistan
*
Author to whom correspondence should be addressed.
Academic Editors: Francisco Javier Romera, Carlos Lucena and María José García
Int. J. Mol. Sci. 2021, 22(9), 4625; https://0-doi-org.brum.beds.ac.uk/10.3390/ijms22094625
Received: 7 April 2021 / Revised: 21 April 2021 / Accepted: 22 April 2021 / Published: 28 April 2021
Low phosphorus (P) availability is one of the major constraints to plant growth, particularly in acidic soils. A possible mechanism for enhancing the use of sparsely soluble P forms is the secretion of malate in plants by the aluminum-activated malate transporter (ALMT) gene family. Despite its significance in plant biology, the identification of the ALMT gene family in oilseed rape (Brassica napus; B. napus), an allotetraploid crop, is unveiled. Herein, we performed genome-wide identification and characterization of ALMTs in B. napus, determined their gene expression in different tissues and monitored transcriptional regulation of BnaALMTs in the roots and leaves at both a sufficient and a deficient P supply. Thirty-nine BnaALMT genes were identified and were clustered into five branches in the phylogenetic tree based on protein sequences. Collinearity analysis revealed that most of the BnaALMT genes shared syntenic relationships among BnaALMT members in B. napus, which suggested that whole-genome duplication (polyploidy) played a major driving force for BnaALMTs evolution in addition to segmental duplication. RNA-seq analyses showed that most BnaALMT genes were preferentially expressed in root and leaf tissues. Among them, the expression of BnaC08g13520D, BnaC08g15170D, BnaC08g15180D, BnaC08g13490D, BnaC08g13500D, BnaA08g26960D, BnaC05g14120D, BnaA06g12560D, BnaC05g20630D, BnaA07g02630D, BnaA04g15700D were significantly up-regulated in B. napus roots and leaf at a P deficient supply. The current study analyzes the evolution and the expression of the ALMT family in B. napus, which will help in further research on their role in the enhancement of soil P availability by secretion of organic acids. View Full-Text
Keywords: Brassica napus; ALMT gene family; phylogenetic analysis; phosphorus-starvation; gene expression Brassica napus; ALMT gene family; phylogenetic analysis; phosphorus-starvation; gene expression
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MDPI and ACS Style

Din, I.; Ullah, I.; Wang, W.; Zhang, H.; Shi, L. Genome-Wide Analysis, Evolutionary History and Response of ALMT Family to Phosphate Starvation in Brassica napus. Int. J. Mol. Sci. 2021, 22, 4625. https://0-doi-org.brum.beds.ac.uk/10.3390/ijms22094625

AMA Style

Din I, Ullah I, Wang W, Zhang H, Shi L. Genome-Wide Analysis, Evolutionary History and Response of ALMT Family to Phosphate Starvation in Brassica napus. International Journal of Molecular Sciences. 2021; 22(9):4625. https://0-doi-org.brum.beds.ac.uk/10.3390/ijms22094625

Chicago/Turabian Style

Din, Ismail, Ihteram Ullah, Wei Wang, Hao Zhang, and Lei Shi. 2021. "Genome-Wide Analysis, Evolutionary History and Response of ALMT Family to Phosphate Starvation in Brassica napus" International Journal of Molecular Sciences 22, no. 9: 4625. https://0-doi-org.brum.beds.ac.uk/10.3390/ijms22094625

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