Interspecific genetic linkage map, segregation distortion and genetic conversion in coffee (Coffea sp.)

2000 ◽  
Vol 101 (4) ◽  
pp. 669-676 ◽  
Author(s):  
C. L. Ky ◽  
P. Barre ◽  
M. Lorieux ◽  
P. Trouslot ◽  
S. Akaffou ◽  
...  
Keyword(s):  
Linkage Map ◽  
Segregation Distortion ◽  
Genetic Linkage ◽  
Genetic Linkage Map ◽  
Genetic Conversion

scholarly journals Detection of segregation distortion loci in triticale (x Triticosecale Wittmack) based on a high-density DArT marker consensus genetic linkage map

BMC Genomics ◽  
2011 ◽  
Vol 12 (1) ◽  
Author(s):  
Katharina V Alheit ◽  
Jochen C Reif ◽  
Hans Peter Maurer ◽  
Volker Hahn ◽  
Elmar A Weissmann ◽  
...  
Keyword(s):  
Linkage Map ◽  
Segregation Distortion ◽  
Genetic Linkage ◽  
Dart Marker ◽  
Genetic Linkage Map ◽  
High Density ◽  
X Triticosecale ◽  
Triticosecale Wittmack ◽  
X Triticosecale Wittmack

Genetic linkage map of Coffea canephora: effect of segregation distortion and analysis of recombination rate in male and female meioses

Genome ◽  
2001 ◽  
Vol 44 (4) ◽  
pp. 589-595 ◽  
Author(s):  
P. Lashermes ◽  
M.C. Combes ◽  
N.S. Prakash ◽  
P. Trouslot ◽  
M. Lorieux ◽  
...  
Keyword(s):  
Linkage Map ◽  
Segregation Distortion ◽  
Recombination Rate ◽  
Genetic Linkage ◽  
Genetic Linkage Map ◽  
Coffea Canephora ◽  
Male And Female

A genetic linkage map for Arctic char (Salvelinus alpinus): evidence for higher recombination rates and segregation distortion in hybrid versus pure strain mapping parents

Genome ◽  
2004 ◽  
Vol 47 (2) ◽  
pp. 304-315 ◽  
Author(s):  
R A Woram ◽  
C McGowan ◽  
J A Stout ◽  
K Gharbi ◽  
M M Ferguson ◽  
...  
Keyword(s):  
Linkage Map ◽  
Segregation Distortion ◽  
Genetic Linkage ◽  
Genetic Linkage Map ◽  
Salvelinus Alpinus ◽  
Linkage Groups ◽  
Recombination Rates ◽  
Pure Strain ◽  
Female Hybrid ◽  
Map Distance

We constructed a genetic linkage map for Arctic char (Salvelinus alpinus) using two backcrosses between genetically divergent strains. Forty-six linkage groups (expected = 39–41) and 19 homeologous affinities (expected = 25) were identified using 184 microsatellites, 129 amplified fragment length polymorphisms (AFLPs), 13 type I gene markers, and one phenotypic marker, SEX. Twenty-six markers remain unlinked. Female map distance (9.92 Morgans) was substantially higher than male map distance (3.90 Morgans) based on the most complete parental information (i.e., the F1 hybrids). Female recombination rates were often significantly higher than those of males across all pairwise comparisons within homologous chromosomal segments (average female to male ratios within families was 1.69:1). The female hybrid parent had significantly higher recombination rates than the pure strain female parent. Segregation distortion was detected in four linkage groups (4, 8, 13, 20) for both families. In family 3, only the largest fish were sampled for genotyping, suggesting that segregation distortion may represent regions possessing influences on growth. In family 2, almost all cases showing segregation distortion involved markers in the female hybrid parent.Key words: salmonid fishes, polyploidy, homeology, genetic markers.

Genetic linkage map of Coffea canephora: effect of segregation distortion and analysis of recombination rate in male and female meioses

Genome ◽  
2001 ◽  
Vol 44 (4) ◽  
pp. 589-595 ◽  
Author(s):  
P Lashermes ◽  
M C Combes ◽  
N S Prakash ◽  
P Trouslot ◽  
M Lorieux ◽  
...  
Keyword(s):  
Sex Differences ◽  
Linkage Map ◽  
Segregation Distortion ◽  
Genetic Linkage ◽  
Genetic Linkage Map ◽  
Recombination Frequency ◽  
Doubled Haploids ◽  
Coffea Canephora ◽  
Dh Population ◽  
Male Gametes

Two complementary segregating plant populations of Coffea canephora were produced from the same clone. One population (DH) comprised 92 doubled haploids derived from female gametes, while the other population (TC) was a test cross consisting of 44 individuals derived from male gametes. Based on the DH population, a genetic linkage map comprising 160 loci was constructed. Eleven linkage groups that putatively correspond to the 11 gametic chromosomes of C. canephora were identified. The mapped loci included more than 40 specific sequence-tagged site markers, either single-copy RFLP probes or microsatellites, that could serve as standard landmarks in coffee-genome analyses. Furthermore, comparisons for segregation distortion and recombination frequency between the two populations were performed. Although segregation distortions were observed in both populations, the frequency of loci exhibiting a very pronounced degree of distortion was especially high in the DH population. This observation is consistent with the hypothesis of strong zygotic selection among the DH population. The recombination frequencies in both populations were found to be almost indistinguishable. These results offer evidence in favour of the lack of significant sex differences in recombination in C. canephora.Key words: coffee, mapping, sex differences, segregation distortion, recombination frequency.

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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