BIOL 210 Lecture Notes - Magnetic Ink Character Recognition, Isoetes, New Zealand Mud Snail
23 Sep 2014
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Document Summary
Chromosomes 8 and 9 that have converted d. pulex to obligately asexual, mechanisms for asexuals to convert sexuals. In this study took a genomic approach to see: How ancient is this phenomenon (<1000yrs old) Not finding an accumulation of small effect mutations like muller"s ratchet predicted. No matter how well an organism is doing at time a, other species are competing with it for resources, so it must continue to change in response. Rq: lose diversity, despite abiotic envmt remains unchanged due to competition between species no matter how well a species is adapted. Australia: heteronotia binoie is widespread in, distinct chromosomal populations exist; triploid parthenogenetic hybrids exist in close proximity to parental species. Ectoparasite loads: rq predicts higher parasite loads for parthenogenetic geckos although many lizards had no mites, when they did, the parthenogens had many times more. Topminnows & sex: gila top minnows (poecilopsis sp. ) exist in ephemeral ponds.
