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KARYOTYPE POLYMORPHISM IN DIFFERENT GEOGRAPHIC POPULATIONS OF GREEN PEACH APHID MYZUS PERSICAE (SULZER) IN CHINA *
Author(s) -
Xiaowen YANG,
Xiaoxi ZHANG
Publication year - 2000
Publication title -
insect science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.991
H-Index - 45
eISSN - 1744-7917
pISSN - 1672-9609
DOI - 10.1111/j.1744-7917.2000.tb00337.x
Subject(s) - karyotype , biology , myzus persicae , aphid , chromosomal translocation , autosome , botany , aphididae , zoology , genetics , homoptera , chromosome , gene , pest analysis
This paper deals with the karyotype of green peach aphid, Myzus persicae (Sulzer), with three different life cycles in different regions of China. The results showed that four types of karyotype were found in the natural populations of red form and brown form aphids. Four types of karyotype are as follows: 2n = 12 with autosomes 1, 3 translocated (T 1–3 ); 3n = 18 normal triploid; 3 n = 18 with T 1–3 translocation; and 2n = 11. However, in the yellowish‐green aphids there were only two types of karyotype, normal karyotype 2n = 12 (NK) and 2n = 12 with T 1–3 translocation. There was no significant difference in the relative lengths of chromosomes in 2n = 12 karyotype among different color forms and groups from different regions.