"Sapporo," which has been evaluated as being one of the most salt tolerant lines in our previous study [ 7], was investigated.
In this study, we commenced a comprehensive transcriptome analysis of a B. napus line, which is one of the most salt tolerant lines obtained in our prior screening [ 7].
Indeed, although the sample size and fold changes are small, it seems that the most highly tolerant lines are those from the indica cultivar-group that also possess this Aromatic allele; these are often more tolerant than lines from the aromatic cultivar-group.
Interestingly, the most frost-tolerant lines were detected amongst Turkish facultative types (Additional file 2: Table S2, Additional file 3: Table S3), which supports a report that frost tolerance in these accessions may be either due to other loci in addition to the linked pair Fr-H1/ Vrn-H1 and Fr-H2 on 5H, or alternatively, more hardy alleles at one or both loci [ 34].
Prolonged flooding also reduced panicle formation by over 50%% in the intolerant genotypes, while most tolerant landraces and breeding lines showed 0 30 % reduction.
mors-prunorum: in all assays, the PO1 lines were the most tolerant to P. s. pv.
However, as the objective of most experiments is to identify superior salt tolerant lines for the field, despite the complexity and cost, well designed and monitored field trials are the ultimate test.
Fu et al. (2011) found that MH63 was the most tolerant variety to high temperate in a total of frequently-used 39 restorer and maintainer lines at flowering stage.
FR13A, the most tolerant genotype, had the slowest underwater elongation, followed by IR49830 and the other Sub1 introgression lines.
