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Genetic analysis of cadmium accumulation in lettuce (Lactuca sativa).
Plant Physiol Biochem. 2019 Mar; 136:67-75.PP

Abstract

This work characterized mechanisms controlling cadmium (Cd) tolerance and accumulation in lettuce at both the physiological and genetic levels. These traits were evaluated in 18 Lactuca accessions representing a large genetic diversity. Cd tolerance and accumulation in roots and shoots as well as Cd translocation from roots to the shoot varied independently, and with a significant range of variation. Analyses of F1 progenies of crosses between cultivars with contrasted phenotypes showed that high tolerance to Cd, low Cd accumulation and low Cd root-shoot translocation were recessive traits. Results of analyses of F2 progenies of different crosses suggest that root Cd concentration and root-shoot Cd translocation were under a complex genetic determinism involving at least two loci. This work thus revealed that limiting both Cd accumulation and Cd root-shoot translocation in lettuce is possible and depends on recessive loci. Differences in the ability to accumulate Cd in roots in the long term could not be linked to differences in short-term 109Cd uptake into, or efflux from, roots. In contrast, the cultivar with the highest root-shoot Cd translocation was the same in the long term and in the short term, which suggests that this trait relies on processes that are implemented quickly (i.e. in less than three days) after the start of Cd exposure.

Authors+Show Affiliations

BPMP, Montpellier SupAgro, CNRS, INRA, Université de Montpellier, France; Laboratoire des Plantes Extrêmophiles, Centre de Biotechnologie de Borj-Cédria, BP 901, Hammam-Lif 2050, Tunisie.ISPA, Bordeaux Sciences Agro, INRA, 33140, Villenave d'Ornon, France. Electronic address: jean-yves.cornu@inra.fr.INRA, UR Génétique et Amélioration des Fruits et Légumes, 1052 Domaine St Maurice, BP 94, 84143, Montfavet Cédex, France.BPMP, Montpellier SupAgro, CNRS, INRA, Université de Montpellier, France.Groupe de Recherches Appliquées en Phytotechnologie, DEVM, CEN Cadarache, 13108, St Paul les Durance, France.BPMP, Montpellier SupAgro, CNRS, INRA, Université de Montpellier, France.Laboratoire des Plantes Extrêmophiles, Centre de Biotechnologie de Borj-Cédria, BP 901, Hammam-Lif 2050, Tunisie.BPMP, Montpellier SupAgro, CNRS, INRA, Université de Montpellier, France.BPMP, Montpellier SupAgro, CNRS, INRA, Université de Montpellier, France.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30658286

Citation

Zorrig, Walid, et al. "Genetic Analysis of Cadmium Accumulation in Lettuce (Lactuca Sativa)." Plant Physiology and Biochemistry : PPB, vol. 136, 2019, pp. 67-75.
Zorrig W, Cornu JY, Maisonneuve B, et al. Genetic analysis of cadmium accumulation in lettuce (Lactuca sativa). Plant Physiol Biochem. 2019;136:67-75.
Zorrig, W., Cornu, J. Y., Maisonneuve, B., Rouached, A., Sarrobert, C., Shahzad, Z., Abdelly, C., Davidian, J. C., & Berthomieu, P. (2019). Genetic analysis of cadmium accumulation in lettuce (Lactuca sativa). Plant Physiology and Biochemistry : PPB, 136, 67-75. https://doi.org/10.1016/j.plaphy.2019.01.011
Zorrig W, et al. Genetic Analysis of Cadmium Accumulation in Lettuce (Lactuca Sativa). Plant Physiol Biochem. 2019;136:67-75. PubMed PMID: 30658286.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Genetic analysis of cadmium accumulation in lettuce (Lactuca sativa). AU - Zorrig,Walid, AU - Cornu,Jean-Yves, AU - Maisonneuve,Brigitte, AU - Rouached,Aïda, AU - Sarrobert,Catherine, AU - Shahzad,Zaigham, AU - Abdelly,Chedly, AU - Davidian,Jean-Claude, AU - Berthomieu,Pierre, Y1 - 2019/01/10/ PY - 2018/09/10/received PY - 2019/01/08/revised PY - 2019/01/09/accepted PY - 2019/1/19/pubmed PY - 2019/2/12/medline PY - 2019/1/19/entrez KW - Cadmium accumulation KW - Cadmium tolerance KW - Diversity analysis KW - Genotype KW - Lettuce SP - 67 EP - 75 JF - Plant physiology and biochemistry : PPB JO - Plant Physiol Biochem VL - 136 N2 - This work characterized mechanisms controlling cadmium (Cd) tolerance and accumulation in lettuce at both the physiological and genetic levels. These traits were evaluated in 18 Lactuca accessions representing a large genetic diversity. Cd tolerance and accumulation in roots and shoots as well as Cd translocation from roots to the shoot varied independently, and with a significant range of variation. Analyses of F1 progenies of crosses between cultivars with contrasted phenotypes showed that high tolerance to Cd, low Cd accumulation and low Cd root-shoot translocation were recessive traits. Results of analyses of F2 progenies of different crosses suggest that root Cd concentration and root-shoot Cd translocation were under a complex genetic determinism involving at least two loci. This work thus revealed that limiting both Cd accumulation and Cd root-shoot translocation in lettuce is possible and depends on recessive loci. Differences in the ability to accumulate Cd in roots in the long term could not be linked to differences in short-term 109Cd uptake into, or efflux from, roots. In contrast, the cultivar with the highest root-shoot Cd translocation was the same in the long term and in the short term, which suggests that this trait relies on processes that are implemented quickly (i.e. in less than three days) after the start of Cd exposure. SN - 1873-2690 UR - https://www.unboundmedicine.com/medline/citation/30658286/Genetic_analysis_of_cadmium_accumulation_in_lettuce__Lactuca_sativa__ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0981-9428(19)30019-1 DB - PRIME DP - Unbound Medicine ER -