The zinc-regulated protein (ZIP) family genes and glutathione s-transferase (GST) family genes play roles in Cd resistance and accumulation of pak choi (Brassica campestris ssp. chinensis)

2019 ◽  
Vol 183 ◽  
pp. 109571 ◽  
Author(s):  
Xue Wu ◽  
Jiahui Chen ◽  
Xiaomeng Yue ◽  
Xiaonan Wei ◽  
Jianwen Zou ◽  
...  
2020 ◽  
Vol 12 (2) ◽  
pp. 3857-3872 ◽  
Author(s):  
Ofer Aidlin Harari ◽  
Diego Santos-Garcia ◽  
Mirit Musseri ◽  
Pnina Moshitzky ◽  
Mitulkumar Patel ◽  
...  

Abstract The glutathione S-transferase (GST) family plays an important role in the adaptation of herbivorous insects to new host plants and other environmental constrains. The family codes for enzymes that neutralize reactive oxygen species and phytotoxins through the conjugation of reduced glutathione. Here, we studied the molecular evolution of the GST family in Bemisia tabaci, a complex of >35 sibling species, differing in their geographic and host ranges. We tested if some enzymes evolved different functionality, by comparing their sequences in six species, representing five of the six major genetic clades in the complex. Comparisons of the nonsynonymous to synonymous substitution ratios detected positive selection events in 11 codons of 5 cytosolic GSTs. Ten of them are located in the periphery of the GST dimer, suggesting a putative involvement in interactions with other proteins. Modeling the tertiary structure of orthologous enzymes, identified additional 19 mutations in 9 GSTs, likely affecting the enzymes’ functionality. Most of the mutation events were found in the environmentally responsive classes Delta and Sigma, indicating a slightly different delta/sigma tool box in each species. At a broader genomic perspective, our analyses indicated a significant expansion of the Delta GST class in B. tabaci and a general association between the diet breadth of hemipteran species and their total number of GST genes. We raise the possibility that at least some of the identified changes improve the fitness of the B. tabaci species carrying them, leading to their better adaptation to specific environments.


2013 ◽  
Vol 170 (14) ◽  
pp. 1277-1284 ◽  
Author(s):  
Mohammad Kazem Rezaei ◽  
Zahra-Sadat Shobbar ◽  
Maryam Shahbazi ◽  
Raha Abedini ◽  
Sajjad Zare

EMBO Reports ◽  
2009 ◽  
Vol 10 (12) ◽  
pp. 1320-1326 ◽  
Author(s):  
Xiao‐Xiao Ma ◽  
Yong‐Liang Jiang ◽  
Yong‐Xing He ◽  
Rui Bao ◽  
Yuxing Chen ◽  
...  

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