LIVING FOSSIL MEMORIES
نویسندگان
چکیده
منابع مشابه
Living fossil or evolving virus?
Although virus-like organisms are thought to have appeared together with the earliest forms of cellular life, their origin remains a mystery and we have little idea of the features of ancient viruses. Conversely, we know a lot about modern viruses, which show great diversity in genome organization and replication machinery, probably due to their antagonistic co-evolution with host defence mecha...
متن کاملA living fossil in the genome of a living fossil: Harbinger transposons in the coelacanth genome.
Emerging data from the coelacanth genome are beginning to shed light on the origin and evolution of tetrapod genes and noncoding elements. Of particular relevance is the realization that coelacanth retains active copies of transposable elements that once served as raw material for the evolution of new functional sequences in the vertebrate lineage. Recognizing the evolutionary significance of c...
متن کاملPredicting the fate of a living fossil
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 Predicting the fate of a living fossil: how will global warming affect sex determination and hatching phenology in tuatara? Nicola J. Mitchell*, Michael R. Kear...
متن کاملEcological conservatism in the ‘‘living fossil’’ Ginkgo
—The living species Ginkgo biloba is phylogenetically isolated, has a relictual distribution, and is morphologically very similar to Mesozoic and Cenozoic congenerics. To investigate what adaptations may have allowed this lineage to persist with little or no morphological change for over 100 Myr, we analyzed both sedimentological and floral data from 51 latest Cretaceous to middle Miocene Ginkg...
متن کاملLarvicidal activity of a living fossil!
Living fossils” refers to plants that are similar to extinct ones. One classic example –Cycads, prominent in the Jurassic and Cretaceous period but recently the cycads have started to disappear. Cycas circinalis L. commonly known as Queen Sago is an endemic restricted to the Western Ghats, was investigated for larvicidal activity. The fourth instar larvae of Aedes aegypti and Culex quinquefasci...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 2008
ISSN: 1477-9145,0022-0949
DOI: 10.1242/jeb.020370