English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Metal tolerance proteins (MTP) are Me 2+ /H + (K + ) antiporters that play important roles in the transport of divalent cations in plants. However, their functions in peanut are unknown. In the present study, a total of 24  AhMTP  genes were identified in peanut, which were divided into seven groups belonging to three substrate-specific clusters (Zn-CDFs, Zn/Fe-CDFs, and Mn-CDFs). All  AhMTP  genes underwent whole genome or segmental gene duplication events except  AhMTP12 . Most  AhMTP  members within the same subfamily or group generally have similar gene and protein structural characteristics. However, some genes, such as  AhMTP1.3 ,  AhMTP2.4 , and  AhMTP12 , showed wide divergences. Most of  AhMTP  genes preferentially expressed in reproductive tissues, suggesting that these genes might play roles in metal transport during the pod and seed development stages. Excess metal exposure induced expressions for most of  AhMTP  genes in peanut roots depending on cultivars. By contrast,  AhMTP  genes in the root of Fenghua 1 were more sensitive to excess Fe, Cd, and Zn exposure than that of Silihong. Stepwise linear regression analysis showed that the percentage of Fe in shoots significantly and positively correlated with the expression of  AhMTP4.1 ,  AhMTP9.1 , and  AhMTPC4.1 , but negatively correlated with that of  AhMTPC2.1  and  AhMTP12 . The expression of  AhMTP1.1  showed a significant and negative correlation with the percentage of Mn in shoots. The percentage of Zn in shoots was significantly and positively correlated with the expression of  AhMTP2.1  but was negatively correlated with that of  AhMTPC2.1 . The differential responses of  AhMTP  genes to metal exposure might be, at least partially, responsible for the different metal translocation from roots to shoots between Fenghua 1 and Silihong.

frontiers in plant science

Genome-wide Identification of Metal Tolerance Protein Genes in Peanut: Differential Expression in the Root of Two Contrasting Cultivars Under Metal Stresses