BIOL 1050 Lecture Notes - Lecture 1: Leopard, Lion, Pollen

• School: University of Guelph
• Department: Biology
• Course: BIOL 1050
• Professor: Dr.Eric Lyons

Document Summary

Two-part format of the scientific name (instituted by carl linnaeus: first part: genus to which the species belongs, second part: (specific epithet) is unique for each species within genus. **when naming, first letter is capitalized, all italicized** Grouped into a hierarchy of increasingly inclusive categories: first grouping is built into the binomial species that appear to be closely related are grouped into the same genus, ex) the leopard (panthera pardus), african lion (panthera leo) Intergeneric hybrids fertile progeny involving two genera: requires intervention, embryo rescue, bridge crossing, chromosome doubling, cell fusion, new genus is a combined name of the two genera, ex) heuchera x tiarella (x indicating the genus cross) Taxon names taxonomic unit at any level of the hierarchy. **pla(cid:272)e(cid:373)e(cid:374)t of spe(cid:272)ies i(cid:374)to the hierar(cid:272)h(cid:455) does(cid:374)"t refle(cid:272)t e(cid:448)olutio(cid:374)ar(cid:455) histor(cid:455)** **ta(cid:454)a that are (cid:271)roader tha(cid:374) ge(cid:374)us are(cid:374)"t itali(cid:272)ized, the(cid:455)"re (cid:272)apitalized** Phylogeny tree branching diagram that shows the evolutionary history of a group of organisms: represents a hypothesis about evolutionary relationships.