Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10975493 | Journal of Dairy Science | 2015 | 11 Pages |
Abstract
Lactobacillus helveticus is an economically important lactic acid bacterium used in industrial dairy fermentation. In the present study, the population structure of 245 isolates of L. helveticus from different naturally fermented dairy products in China and Mongolia were investigated using an multilocus sequence typing scheme with 11 housekeeping genes. A total of 108 sequence types were detected, which formed 8 clonal complexes and 27 singletons. Results from Structure, SplitsTree, and ClonalFrame software analyses demonstrated the presence of 3 subpopulations in the L. helveticus isolates used in our study, namely koumiss, kurut-tarag, and panmictic lineages. Most L. helveticus isolates from particular ecological origins had specific population structures.
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Authors
Zhihong Sun, Wenjun Liu, Yuqin Song, Haiyan Xu, Jie Yu, Menghe Bilige, Heping Zhang, Yongfu Chen,