The biota rapidly diversified throughout the Cambrian and Ordovician periods as life-forms adapted to virtually all marine environments.
An essential problem in recommender systems is to learn users' preference dynamics, that is, the constant evolution of the explicit or the implicit information, which is diversified throughout time according to the user actions.
That supports the notion that these genes "have diversified throughout evolution from their ancient duplications to perform important, specific, diverse roles in mammal cognition in behavior".
One view (the Paleozoic hypothesis) developed from analyses of nuclear 18S rRNA sequences holds that the photosynthetic stramenopiles originated between 498 and 293 Ma [5], [29] and subsequently diversified throughout the Mesozoic [29], [30].
One hypothesis is that the photosynthetic stramenopiles originated sometime in the Paleozoic [5] and diversified throughout the Mesozoic [29], [30] whereas a radically different position holds that the pigmented heterokont groups evolved in the Proterozoic [16], [18], [20], [23].
The six larger formicine tribes diversified throughout the late Cretaceous, Paleocene, and early Eocene, between 51 88.9 Ma (Fig. 4 and Table 2).
TPSs are highly diversified throughout the plant kingdom and form a mid-size gene family, which are directly responsible for the synthesis of the various terpenes [ 78].
The murMN genes were once more unaffected, whereas the pbp1a, pbp2x, and pbp2b genes were each again altered through the import of sequence and subsequently continued to diversify throughout the PMEN14 clade.
However, in general it appears that the upstream regulatory regions have diversified throughout the gene pair evolution, even though regions within the genes have evolved in concert [see Additional file 10].
Vertebrates, less severely affected by the extinction than invertebrates, diversified progressively throughout the Triassic.
