Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/125069
Title: ORIGIN AND SPREAD OF THE GERMAN COCKROACH, BLATTELLA GERMANICA
Authors: TANG QIAN
Keywords: German cockroach, Blattodea, phylogenetics, population genetics, urban pest management, microsatellites, complete mitochondria
Issue Date: 18-Jan-2016
Source: TANG QIAN (2016-01-18). ORIGIN AND SPREAD OF THE GERMAN COCKROACH, BLATTELLA GERMANICA. ScholarBank@NUS Repository.
Abstract: GERMAN COCKROACH, BLATTELLA GERMANICA, IS ONE OF THE MOST COMMON URBAN PEST COCKROACH SPECIES. ACCORDING TO HISTORICAL RECORDS AND TAXONOMICAL STUDIES, GERMAN COCKROACH WAS LIKELY ORIGINATED FROM ITS CLOSE RELATIVE THE ASIAN COCKROACH, BLATTELLA ASAHINAI. THEN GERMAN COCKROACH WAS INTRODUCED INTO EUROPE BEFORE 18TH CENTURY AND THEN SPREAD TO THE REST OF THE WORLD. SO FAR, THE ORIGIN AND SPREAD OF GERMAN COCKROACH REMAINED TO BE DISCOVERED. MOLECULAR PHYLOGENY WITH COMPLETE MITOCHONDRIAL GENOMES SUGGESTS THAT GERMAN COCKROACH MAY EVOLVE FROM ASIAN COCKROACH, OR IT IS VERY LIKELY THAT GERMAN COCKROACH?S NATURAL HABITAT WAS IN SOUTH ASIA. POPULATION GENETIC ANALYSES SUGGEST THAT IT IS LIKELY THAT THERE ARE THREE ROUTES BROUGHT GERMAN COCKROACH TO THE WHOLE WORLD. POPULATION STRUCTURE ALSO SHOWS REGIONAL PATTERN AND POSITIVE ISOLATION BY DISTANCE (IBD) WHICH INDICATE THAT THE ?BRIDGEHEAD EFFECT? WAS THE MAJOR FORCES AMONG ALL INVASION SCENARIOS. POPULATION GENETIC ANALYSES OF CHI
URI: http://scholarbank.nus.edu.sg/handle/10635/125069
Appears in Collections:Ph.D Theses (Open)

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