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Authors Kaddour, R; Sellami, N; Chennaoui, H; Nasri, N; Baatour, O; Mahmoudi, H; Tarchoun, I; Lachaal, M; Gruber, M; Trifi, N
Author Full Name Kaddour, Rym; Sellami, Nehla; Chennaoui, Houda; Nasri, Nawel; Baatour, Olfa; Mahmoudi, Hela; Tarchoun, Imen; Lachaal, Mokhtar; Gruber, Margaret; Trifi, Neila
Title Correlation between salt tolerance and genetic diversity between Sulla carnosa and Sulla coronaria
Source AFRICAN JOURNAL OF BIOTECHNOLOGY
Language English
Document Type Article
Author Keywords Salt constraint; Sulla; growth; ISSR markers
Keywords Plus K+ TRANSPORT; CHANNEL; NA+; ACCUMULATION; SALINITY; L.; DISCRIMINATION; HEDYSARUM; SELECTION; CRITERIA
Abstract Sulla constitutes an important genetic resource contributing to pastoral production, particularly in semi-arid regions. In Tunisia, seedlings of the southern species Sulla carnosa (Desf.) and the northern species Sulla coronaria (L.) were treated with NaCl (0, 100 and 200 mM) for 27 days. Salt treatments decreased leaf dry matter more in S. carnosa than in S. coronaria. S. coronaria accumulated less Na+ and greater amounts of K+ and showed greater K/Na selectivity, a trait which could be related to the maintenance of higher net K+ uptake and transport in the presence of NaCl. Pigments were severely affected by salt stress in leaves of S. carnosa when compared with leaves of S. coronaria. In addition to these physiological characterisations, genetic diversity was measured between the two accessions using inter simple sequence repeat (ISSR) markers. Three ISSR primers generated a total of 63 DNA amplicons for S. carnosa and 64 DNA amplicons for S. coronaria, all of which were polymorphic between the two accessions. Correlations between the molecular and physiological data revealed statistically significant correlations between the salt response of these two Sulla accessions and two molecular markers B340 and B860, in roots and shoots, respectively. S. coronaria showed greater salt tolerance on the basis of growth and K/Na selectivity, making it a good candidate for inclusion in a future breeding programme.
Author Address [Kaddour, Rym; Sellami, Nehla; Chennaoui, Houda; Trifi, Neila] Fac Sci Tunis, Lab Genet Mol Immunol & Biotechnol, Tunis 2092, Tunisia; [Gruber, Margaret] Agr & Agri Food Canada, Saskatoon Res Ctr, Saskatoon, SK S7N 0X2, Canada
Reprint Address Kaddour, R (corresponding author), Fac Sci Tunis, Lab Genet Mol Immunol & Biotechnol, Campus Univ,El Manar 2, Tunis 2092, Tunisia.
E-mail Address rym_kaddour@yahoo.fr
ResearcherID Number TRIFI-FARAH, Neila/AAE-7736-2020
Times Cited 5
Total Times Cited Count (WoS, BCI, and CSCD) 5
Publisher ACADEMIC JOURNALS
Publisher City VICTORIA ISLAND
Publisher Address P O BOX 5170-00200 NAIROBI, VICTORIA ISLAND, LAGOS 73023, NIGERIA
ISSN 1684-5315
29-Character Source Abbreviation AFR J BIOTECHNOL
ISO Source Abbreviation Afr. J. Biotechnol.
Publication Date OCT 24
Year Published 2011
Volume 10
Issue 65
Beginning Page 14355
Ending Page 14365
Page Count 11
Web of Science Category Biotechnology & Applied Microbiology
Subject Category Biotechnology & Applied Microbiology
Document Delivery Number 868TQ
Unique Article Identifier WOS:000298549000015
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