The southern African coastline covers a wide range of climatic and oceanic conditions and can be divided into three major biogeographic regions: cool-temperate (from southern Namibia to the Cape of Good Hope; Figure 1A), warm-temperate (from the Cape of Good Hope eastward to East London) and sub-tropical (from East London north to Mozambique).
The experimental design included two clones from temperate environments (Fence from Ontario and Hawrelak from Alberta) and two clones from subarctic environments (A24 from Manitoba and K154 from Quebec).
Of the 1229 SNPs, 49 are found only in one subgroup (36 from tropical or subtropical, 6 from temperate, and 7 from mixed).
First, our data set suffers from a strong geographical bias, with the majority of data coming from temperate, marine stocks from the Northwest Atlantic.
Lu et al. [ 4] characterized 770 maize lines, including 394 tropical/subtropical germplasm from CIMMYT; 14 tropical/sub-tropical and 268 temperate germplasm from China; and 1 temperate and 93 tropical/subtropical germplasm from Brazil, using 1034 SNPs.
However, while the seasonality differs from temperate countries, mortality from influenza activity in tropical Singapore is comparable to temperate and sub-tropical countries such as the United States and Hong Kong [3].
Data compiled on PBDEs in marine mammals from temperate environments and from the Canadian Arctic showed that levels of PBDEs were about 1,000 times higher in marine mammals from temperate marine ecosystems than in ringed seals from the Arctic (Ikonomou et al. 2002).
In 2005, Seed and Dennis isolated four lytic phages from onion rhizosphere as well as five temperate phages from five different strains within the BCC [ 5].
The remaining Caenorhabditis species for which we have more than one record were either isolated from tropical or from temperate regions but not from both.
He was not one of the mellow, temperate Chinese from Buck's novels.
Large numbers of some species seasonally invade temperate areas from the tropics.
