Anabaena variabilis Thiel et al. 2014 Thiel T. Pratte B.S. Zhong J. Goodwin L. Copeland A. Lucas S. Han C. Pitluck S. Land M.L. Kyrpides N.C. Woyke T. Complete genome sequence of Anabaena variabilis ATCC 29413 2014 9 562 573 Standards in Genomic Sciences Stand Genomic Sci 1944-3277 10.4056/sigs.3899418 25197444