Year: 1993
Type: article
Abstract: There are three major parts in my thesis.In the first part, I examined the complete nucleotide sequences for the mitochondrial cytochrome oxidase I1 gene of 13 species of insects, representing ten orders.The genes range from 673 to 690 bp in length, encoding 226 to 229 amino acids.Several insertion or deletion events can be observed, each involving one or two codons.The 3' end of the gene is extremely variable, both in length and sequence, making alignment of the ends unreliable.Using the first 639 nucleotide positions, for which unambiguous alignments could be obtained, I examined the neighbor-joining trees based on nucleotide divergences, and based on conserved subsets of that data, including transversion, amino acid and second codon position divergences.Each of these subsets produces different trees, none of which can be easily reconciled with trees constructed using morphology and the fossil record.
Source: Summit (Simon Fraser University)
Author: Hong Liu
Language: English
Subfield: Molecular Biology
Domain: Life Sciences
Open Access status: green
OpenAlex ID: W2096679222