کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2821058 1160918 2012 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
QTL mapping of physiological traits associated with salt tolerance in Medicago truncatula Recombinant Inbred Lines
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی ژنتیک
پیش نمایش صفحه اول مقاله
QTL mapping of physiological traits associated with salt tolerance in Medicago truncatula Recombinant Inbred Lines
چکیده انگلیسی

In this study, QTL mapping of physiological traits in the model Legume (Medicago truncatula) was performed using a set of RILs derived from LR5. Twelve parameters associated with Na+ and K+ content in leaves, stems and roots were measured. Broad-sense heritability of these traits was ranged from 0.15 to 0.83 in control and from 0.14 to 0.61 in salt stress. Variation among RILs was dependent on line, treatment and line by treatment effect. We mapped 6 QTLs in control, 2 in salt stress and 5 for sensitivity index. No major QTL was identified indicating that tolerance to salt stress is governed by several genes with low effects. Detected QTL for leaf, stem and root traits did not share the same map locations, suggesting that genes controlling transport of Na+ and K+ may be different. The maximum of QTL was observed on chromosome 1, no QTL was detected on chromosomes 5 and 6.


► QTL mapping of K+, Na+ content in leaves, stems and roots in M. truncatula was performed using a set of RILs derived from LR5.
► Variation among RILs was dependent on line, treatment and line by treatment effect.
► We mapped 6 QTLs in control, 2 in salt stress and 5 for sensitivity index.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Genomics - Volume 99, Issue 2, February 2012, Pages 118–125
نویسندگان
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