Towards a Genetic Linkage Map of the California Condor, an Endangered New World Vulture Species

Michael N. Romanov, Yang Da, Leona G. Chemnick, Steven M. Thomas, Sugandha S. Dandekar, Jeanette C. Papp, Oliver A. Ryder

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


The development of a linkage map is an important component for promoting genetic and genomic studies in California condors, an endangered New World vulture species. Using a set of designed anonymous microsatellite markers, we genotyped a reference condor population involving 121 individuals. After marker validation and genotype filtering, the genetic linkage analysis was performed using 123 microsatellite loci. This resulted in the identification of 15 linkage groups/subgroups that formed a first-generation condor genetic map, while no markers linked to a lethal chondrodystrophy mutation were found. A panel of polymorphic markers that is instrumental in molecular parentage diagnostics and other genetic studies in the California condor was selected. Further condor conservation genomics research will be focused on updating the linkage map and integrating it with cytogenetic and BAC-based physical maps and ultimately with the genome sequence assembly.

Original languageEnglish (US)
Article number3266
Issue number23
StatePublished - Dec 2022

Bibliographical note

Funding Information:
This research was funded by the private Seaver Institute as well as the Zoological Society of San Diego.

Publisher Copyright:
© 2022 by the authors.


  • California condor
  • conservation genomics
  • linkage map
  • microsatellite loci


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