| control of fear bradycardia in the swamp right, sylvilagus aquaticus. | | 1981 | 6116578 |
| brugia lepori sp. n. (filarioidea: onchocercidae) from rabbits (sylvilagus aquaticus, s. floridanus) in louisiana. | brugia lepori sp. n., a filarial nematode from the abdominal lymphatics and subcutaneous tissues of rabbits (sylvilagus aquaticus, s. floridanus), from st. tammany parish, louisiana, is described. brugia lepori is of moderate size (males 12 to 19 mm, females 39 to 45 mm) and within the genus most closely resembles brugia beaveri of the raccoon, from which it can be distinguished by its larger size, smaller spicules, and smaller microfilaria which has a shorter cephalic space. brugia lepori is on ... | 1984 | 6502360 |
| phylogenetic relationships of cottontails (sylvilagus, lagomorpha): congruence of 12s rdna and cytogenetic data. | the genus sylvilagus, which comprises the new world cottontail rabbits, contains several commercially important as well as endangered (or threatened) species. understanding the evolution of this group is pertinent to their management and conservation. the purpose of this study was to examine the evolutionary history of the cottontails using sequence data from the mitochondrial 12s rrna gene. the 12s data provide a robust phylogeny which was supported under a variety of phylogenetic approaches an ... | 1997 | 9187089 |
| lagomorphs (rabbits, pikas and hares) do not use telomere-directed replicative aging in vitro. | telomere shortening is used for replicative aging in primates and ungulates but not rodents. we examined telomere biology in rabbits to expand the comparative biology of telomere-directed replicative senescence within mammals. the order lagomorpha consists of two families; leporidae and ochotonidae. we examined telomere biology in species representing three leporid genera (european white rabbit, black-tailed jack rabbit, and swamp rabbit) and the monotypic ochotonid genus (north american pika). ... | 2005 | 15888323 |
| novel hepatozoon in vertebrates from the southern united states. | abstract novel hepatozoon spp. sequences collected from previously unrecognized vertebrate hosts in north america were compared with documented hepatozoon 18s rrna sequences in an effort to examine phylogenetic relationships between the different hepatozoon organisms found cycling in nature. an approximately 500 base pair fragment of 18s rdna common to hepatozoon spp. and some other apicomplexans was amplified and sequenced from the tissues or blood of 16 vertebrate host species from the souther ... | 2011 | 21506825 |
| evolution of chromosomal variation in cottontails, genus sylvilagus (mammalia: lagomorpha): s. aquaticus, s. floridanus, and s. transitionalis. | the banding patterns of mitotic chromosome from three cottontail species, sylvilagus aquaticus (2n = 38), s. floridanus (2n = 42), and s. transitionalis (2n = 46), are presented and compared with those of the proposed leporid ancestral karyotype, the latter being reflected in a species of hare, lepus saxatilis (2n = 48). the differences in the diploid numbers of the cottontail species are primarily due to the fixation of robertsonian fusions which have occurred during the evolution of their resp ... | 1983 | 6861527 |