NDLI: A recombination survey using microsatellites: the O chromosome of Drosophila subobscura

Content Provider	Springer Nature Link
Author	Pegueroles, Cinta Araúz, Pedro A. Pascual, Marta Mestres, Francesc
Copyright Year	2010
Abstract	Recombination plays an important role in species adaptation since it acts as an evolutionary force that can influence genome pattern organization. However, recombination can be detrimental in some situations, causing the breakdown of some adaptive gene combinations such as coadapted gene complexes. Genetic and cytological chromosome maps allow recombination throughout the genome to be analyzed. In this study we compare the recombination rate of two types of homokaryotypic lines of D. subobscura (OST and O3+4) using a set of at least 13 microsatellite loci. The genetic maps obtained present similar lengths: 184 and 196 cM for OST and O3+4 chromosomes, respectively. For most pairs of markers analyzed, a sample size of about 150 individuals appeared sufficient to obtain appropriate recombination values, with the exception of markers located in the same cytological band. Recombination rates seemed to be fairly uniform along the O chromosome, but some regional differences were observed. Several recombination hot and coldspots were detected, and their numbers were different in the homokaryotypic line types (OST and O3+4). This variability could be attributed to differences between the genetic content of the two arrangements or to differences between the lines.
Starting Page	795
Ending Page	804
Page Count	10
File Format	PDF
ISSN	00166707
Journal	Genetica
Volume Number	138
Issue Number	7
e-ISSN	15736857
Language	English
Publisher	Springer Netherlands
Publisher Date	2010-05-06
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	D. subobscura Recombination Genetic map Microsatellite loci Hotspots Coldspots Microbial Genetics and Genomics Human Genetics Plant Genetics & Genomics Animal Genetics and Genomics Life Sciences
Content Type	Text
Resource Type	Article
Subject	Genetics Plant Science Medicine Animal Science and Zoology Insect Science

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