S-Space College of Agriculture and Life Sciences (농업생명과학대학) Dept. of Agricultural Biotechnology (농생명공학부) Theses (Ph.D. / Sc.D._농생명공학부)
Systematic Study of Calaphidinae s.l. (Hemiptera: Aphididae) in the Korean Peninsula: Cryptic Diversity Identification and Phylogenetic Reconstruction
한반도산 참알락진딧물아과(노린재목: 진딧물과)의 계통분류학적 연수
- 농업생명과학대학 농생명공학부
- Issue Date
- 서울대학교 대학원
- 학위논문 (박사)-- 서울대학교 대학원 농업생명과학대학 농생명공학부, 2017. 8. 이승환.
- The subfamily Calaphidinae s.l. were investigated on three subjects: i) taxonomic review of the Korean Calaphidinae including two closely related subfamilies (Phyllaphidinae and Saltusaphidinae), ii) identifying cryptic diversity of the subfamily Calaphidinae s.s. based on DNA barcoding and iii) molecular phylogeny and evolutionary hypothesis of the subfamily Calaphidinae s.l. In the first part, Calaphidinae and two closely related subfamilies (Phyllaphidinae and Saltusaphidinae) were reviewed in the Korean peninsula, comprising 89 species of 33 genera. In this study, 16 new species and 18 unrecorded species were newly recognized. In addition, 1 revived species, 4 misidentified, and 2 synonymized species were confirmed. In the second part, cryptic diversity in the subfamily Calaphidinae s.s. were
investigated based on 899 cytochrome c oxidase I (COI) sequences from 115 morphospecies. A total of 15 cryptic species was identified from 12 morphospecies as well as 3 morphologically distinct species pairs that shared DNA barcoding. The third part was testing a monophyly of the subfamily Calaphidinae s.l. including sister group relationship and confirming the relationship among its components such as tribe and genera with reference to an evolutionary hypothesis of ancestral host plant relationship and host shift. The phylogenetic results demonstrated that Phyllaphidinae forms a basal node as the most primitive group of Calaphidinae s.l. and Calaphidinae s.l. is not a monophyly by including Saltusaphidinae.