Population cytogenetics of Drosophila Kikkawai in Thailand
3
Issued Date
1988
Copyright Date
1988
Resource Type
Language
eng
File Type
application/pdf
No. of Pages/File Size
vii, 62 leaves : ill.
Access Rights
open access
Rights
ผลงานนี้เป็นลิขสิทธิ์ของมหาวิทยาลัยมหิดล ขอสงวนไว้สำหรับเพื่อการศึกษาเท่านั้น ต้องอ้างอิงแหล่งที่มา ห้ามดัดแปลงเนื้อหา และห้ามนำไปใช้เพื่อการค้า
Rights Holder(s)
Mahidol University
Bibliographic Citation
Thesis (M.Sc. (Environmental Biology))--Mahidol University, 1988
Suggested Citation
Komgrich Achariyabout Population cytogenetics of Drosophila Kikkawai in Thailand. Thesis (M.Sc. (Environmental Biology))--Mahidol University, 1988. Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/103296
Title
Population cytogenetics of Drosophila Kikkawai in Thailand
Alternative Title(s)
การศึกษาลักษณะพันธุกรรมในประชากรเของแมลงหวี่ (D. kikkawai) ในประเทศไทย
Author(s)
Advisor(s)
Abstract
Drosophila kikkawai, a member of the montium subgroup belonging to the melanogaster group of the genus Drosophila is quite common and widespread species. Samples from Mae Hong Son population were taken at two month intervals for examined cytologically. D. kikkawai exhibits variation in sizes and shapes of the 4th and Y chromosomes. There were 9 types of 4th chromosome (Lt, Mt, St, Lm, Mm, Sm, Lsm, Msm and Ssm) and 3 types of Y chromosomes, detected in this study. In sprite of six types of 4th chromosome were previously observed and described, it has found more three additional types, St, Sm and Ssm in this study. In addition, it is very interesting that Y1 chromosome has been found, which is the new record in this population. The frequencies of different types of 4th chromosome tended to variation between seasonal changes. The results of the homogeneity test showed the significant differences appeared in a population between seasonal changes. There were eight, from 96 isofemale lines of Mae Hong Son population, showed various conditions of aneuploidy (2n = 8-10). Interestingly enough, five from six collections in this study have been found aneuploidy. And a goodness of fit test showed non significant difference between the season. It was only inversion 3LA has been found in Mae Hong Son population. The frequencies of gene arrangements in the six samples tended to variation between seasonal changes. The result of the goodness of test showed the significant differences exist between the rainy season and the summer. The correlation between mitotic chromosome and inversion polymorphism showed positive correlation. On contrary, the correlation between mitotic chromosome and aneuploid condition showed negative correlation. This result similar to the correlation between inversion polymorphism and aneuploid condition.
Description
Environmental Biology (Mahidol University 1988)
Degree Name
Master of Science
Degree Level
Master's degree
Degree Department
Faculty of Science
Degree Discipline
Environmental Biology
Degree Grantor(s)
Mahidol University