A genetic linkage map of chicken chromosome 1 in an F2 resource population

2007 ◽  
Vol 29 (08) ◽  
pp. 977
Author(s):  
Xiao-Feng LIU
Keyword(s):  
Linkage Map ◽  
Genetic Linkage ◽  
Genetic Linkage Map ◽  
Chromosome 1 ◽  
Chicken Chromosome ◽  
Resource Population

scholarly journals Integration of the Aedes aegypti Mosquito Genetic Linkage and Physical Maps

Genetics ◽  
2001 ◽  
Vol 157 (3) ◽  
pp. 1299-1305
Author(s):  
S E Brown ◽  
D W Severson ◽  
L A Smith ◽  
D L Knudson
Keyword(s):  
Aedes Aegypti ◽  
Linkage Map ◽  
Genetic Linkage ◽  
Positional Cloning ◽  
Genetic Linkage Map ◽  
Physical Map ◽  
Chromosome 1 ◽  
Chromosome 2 ◽  
Metaphase Chromosomes ◽  
Physical Maps

Abstract Two approaches were used to correlate the Aedes aegypti genetic linkage map to the physical map. STS markers were developed for previously mapped RFLP-based genetic markers so that large genomic clones from cosmid libraries could be found and placed to the metaphase chromosome physical maps using standard FISH methods. Eight cosmids were identified that contained eight RFLP marker sequences, and these cosmids were located on the metaphase chromosomes. Twenty-one cDNAs were mapped directly to metaphase chromosomes using a FISH amplification procedure. The chromosome numbering schemes of the genetic linkage and physical maps corresponded directly and the orientations of the genetic linkage maps for chromosomes 2 and 3 were inverted relative to the physical maps. While the chromosome 2 linkage map represented essentially 100% of chromosome 2, ∼65% of the chromosome 1 linkage map mapped to only 36% of the short p-arm and 83% of the chromosome 3 physical map contained the complete genetic linkage map. Since the genetic linkage map is a RFLP cDNA-based map, these data also provide a minimal estimate for the size of the euchromatic regions. The implications of these findings on positional cloning in A. aegypti are discussed.

scholarly journals Genetic linkage map of chicken chromosome 1 from a Brazilian resource population

2005 ◽  
Vol 62 (1) ◽  
pp. 12-17 ◽  
Author(s):  
Kátia Nones ◽  
Mônica Corrêa Ledur ◽  
Deborah Clea Ruy ◽  
Erica Elias Baron ◽  
Ana Silvia Alves Meira Tavares Moura ◽  
...  
Keyword(s):  
Linkage Map ◽  
Chromosome 1 ◽  
Chicken Chromosome ◽  
Consensus Map ◽  
International Consensus ◽  
Resource Population ◽  
F2 Population ◽  
Two Generations ◽  
Sib Families ◽  
Insight Into

A genetic map provides insight into genome organization and chromosomal location of markers and genes, and is important for quantitative trait loci (QTL) mapping. The objective of this study was to use a Brazilian resource population to construct a linkage map for chicken chromosome 1. Eighty microsatellite markers were tested and 26 informative markers were typed in an experimental F2 population developed by two generations of crossbreeding between a broiler sire line and a layer line. A total of 649 F2 individuals from seven full-sib families with about 95 F2 offspring each were genotyped. Multi-locus linkage analysis resulted in a chromosome 1 map of 26 ordered markers. Locus order was in general agreement with other published linkage maps, except for two discrepancies: 1) order of loci MCW10 and MCW208 was reversed in this map relative to the Wageningen linkage map, 2) markers ADL234 and LEI68, that were mapped to the same position in Compton, East Lansing and Wageningen populations, were separated by a distance of 5.9 centimorgans in our population. The higher number of informative meioses from our population could explain these differences. This map is an important first step in our effort to map QTL in the Brazilian chicken resource population, and complements the international consensus map information.

The First Comprehensive Genetic Linkage Map of a Marsupial: The Tammar Wallaby (Macropus eugenii)

Genetics ◽  
2002 ◽  
Vol 162 (1) ◽  
pp. 321-330 ◽  
Author(s):  
Kyall R Zenger ◽  
Louise M McKenzie ◽  
Desmond W Cooper
Keyword(s):  
Linkage Map ◽  
Genetic Linkage ◽  
Genetic Linkage Map ◽  
Average Distance ◽  
Tammar Wallaby ◽  
Chromosome 1 ◽  
Linkage Groups ◽  
Recombination Rates ◽  
Macropus Eugenii ◽  
Significant Linkage

AbstractThe production of a marsupial genetic linkage map is perhaps one of the most important objectives in marsupial research. This study used a total of 353 informative meioses and 64 genetic markers to construct a framework genetic linkage map for the tammar wallaby (Macropus eugenii). Nearly all markers (93.8%) formed a significant linkage (LOD > 3.0) with at least one other marker, indicating that the majority of the genome had been mapped. In fact, when compared with chiasmata data, >70% (828 cM) of the genome has been covered. Nine linkage groups were identified, with all but one (LG7; X-linked) allocated to the autosomes. These groups ranged in size from 15.7 to 176.5 cM and have an average distance of 16.2 cM between adjacent markers. Of the autosomal linkage groups (LGs), LG2 and LG3 were assigned to chromosome 1 and LG4 localized to chromosome 3 on the basis of physical localization of genes. Significant sex-specific distortions toward reduced female recombination rates were revealed in 22% of comparisons. When comparing the X chromosome data to closely related species it is apparent that they are conserved in both synteny and gene order.

The construction of a preliminary genetic linkage map in the Japanese scallop Mizuhopecten yessoensis

2009 ◽  
Vol 31 (6) ◽  
pp. 629-637 ◽  
Author(s):  
Wei-Dong LIU ◽  
Xiang-Bo BAO ◽  
Wen-Tao SONG ◽  
Zun-Chun ZHOU ◽  
Chong-Bo HE ◽  
...  
Keyword(s):  
Linkage Map ◽  
Genetic Linkage ◽  
Genetic Linkage Map ◽  
Japanese Scallop ◽  
Mizuhopecten Yessoensis

An Integrated Genetic Linkage Map from Three F2 Populations of Cultivated Peanut(Arachis hypogaeaL.)

2016 ◽  
Vol 42 (2) ◽  
pp. 159 ◽  
Author(s):  
Jian-Bin GUO ◽  
Li HUANG ◽  
Liang-Qiang CHENG ◽  
Wei-Gang CHEN ◽  
Xiao-Ping REN ◽  
...  
Keyword(s):  
Linkage Map ◽  
Genetic Linkage ◽  
Genetic Linkage Map ◽  
Cultivated Peanut

Construction of genetic linkage map in Japannese flounder (Paralichthys olivaceus)

2013 ◽  
Vol 19 (6) ◽  
pp. 930-938 ◽  
Author(s):  
Renyi PANG ◽  
Wentao SONG ◽  
Fengtao GAO ◽  
Xiaolin LIAO ◽  
Yongwei ZHAO ◽  
...  
Keyword(s):  
Linkage Map ◽  
Genetic Linkage ◽  
Genetic Linkage Map ◽  
Paralichthys Olivaceus

Towards a Saturated Molecular Genetic Linkage Map for Cultivated Sunflower

Crop Science ◽  
2003 ◽  
Vol 43 (1) ◽  
pp. 367 ◽  
Author(s):  
Ju-Kyung Yu ◽  
Shunxue Tang ◽  
Mary B. Slabaugh ◽  
Adam Heesacker ◽  
Glenn Cole ◽  
...  
Keyword(s):  
Linkage Map ◽  
Genetic Linkage ◽  
Genetic Linkage Map ◽  
Molecular Genetic

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

Genetics ◽  
2001 ◽  
Vol 158 (2) ◽  
pp. 695-700 ◽  
Author(s):  
David J Hawthorne
Keyword(s):  
Candidate Gene ◽  
Linkage Map ◽  
Colorado Potato Beetle ◽  
Leptinotarsa Decemlineata ◽  
Genetic Linkage ◽  
Genetic Linkage Map ◽  
Sex Chromosome ◽  
Pyrethroid Resistance ◽  
Codominant Markers ◽  
Potato Beetle

Abstract 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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