AFLP-Based Genetic Linkage Map of the Colorado Potato BeetleLeptinotarsa decemlineata: Sex Chromosomes and a Pyrethroid-Resistance Candidate Gene | Zendy

David J. Hawthorne | Zendy

Open Access

AFLP-Based Genetic Linkage Map of the Colorado Potato BeetleLeptinotarsa decemlineata: Sex Chromosomes and a Pyrethroid-Resistance Candidate Gene

Author(s) -

David J. Hawthorne

Publication year - 2001

Publication title -

genetics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.792

H-Index - 246

eISSN - 1943-2631

pISSN - 0016-6731

DOI - 10.1093/genetics/158.2.695

Subject(s) - biology , leptinotarsa , genetics , genetic linkage , amplified fragment length polymorphism , colorado potato beetle , candidate gene , gene mapping , gene , chromosome , pest analysis , botany , population , genetic diversity , demography , sociology

A genetic linkage map was constructed from an intraspecific cross of the Colorado potato beetle, Leptinotarsa decemlineata. This is an initial step toward mapping the loci that underlie important phenotypes associated with insect adaptation to an agroecosystem. The map was made with 172 AFLP and 10 anonymous codominant markers segregating among 74 backcross (BC1) individuals. Markers were mapped to 18 linkage groups and a subset of the markers with a mean intermarker distance of 11.1 cM is presented. A pyrethroid-resistance candidate gene, LdVssc1, was placed onto the map as well. The sex chromosome was identified by exploiting the XO nature of sex determination in this species using patterns of variation at LdVssc1 and the codominant markers.

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