Cytogenetic study of the Anopheles maculatus complex
2
Issued Date
1988
Copyright Date
1988
Resource Type
Language
eng
File Type
application/pdf
No. of Pages/File Size
xi, 102 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
Supa Chabpunnarat Cytogenetic study of the Anopheles maculatus complex. Thesis (M.Sc. (Environmental Biology))--Mahidol University, 1988. Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/103433
Title
Cytogenetic study of the Anopheles maculatus complex
Alternative Title(s)
การศึกษาไซโตเจเนติกของยุงกันปล่องชนิดซับซ้อน Anopheles maculatus
Author(s)
Advisor(s)
Abstract
An. maculatus Theobald is recognized as an important vector of malaria in Thailand and its neighbouring countries such as malaysia. Results of inter-specific hybridizations among the An. sawadwongporni, An. maculatus, An. dravidicus and An. notanandai are F1 male sterile and F1 female fertile. Percentages of the eggs hatch anbd percentages of the pupae develop into adults are lower than that of the intra-specific hybridization. These clearly indicate that reproductive isolation exists among these species of the An. maculatus complex and the lack of gene flow between them. These data of hybridizations correspond with cytological evidence i.e. The pairing of chromosome in F1 hybrids showed the parts of the asynapsis in various chromosomal arms. This suggest that there are genetic incompatibility within these species of An. maculatus. The data from both hybridizations and cytological evidence seem to suggest that An. sawadwongporni and An. notanandai are most closely related. Next distant are An. maculatus and An. dravidicus, An. sawadwongporni and An. maculatus, with An. sawadwongporni and An. dravidicus mostly distantly. The crossing between An. maculatus form B and form E produced F1 fertile of both sexes as F1 females showed the typical loop arrangement of inversion heterozygotes. This might be a preliminary evidence of the speciation process within the taxon An. maculatus. The hybridization results support the current classification and species divergence within taxon An. maculatus.
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