Identification of Sex-determining Loci in Pacific White Shrimp Litopeneaus vannamei Using Linkage and Association Analysis

Marine Biotechnology
Yang YuJ Xiang

Abstract

The Pacific white shrimp Litopenaeus vannamei is a predominant aquaculture shrimp species in the world. Like other animals, the L. vannamei exhibited sexual dimorphism in growth trait. Mapping of the sex-determining locus will be very helpful to clarify the sex determination system and further benefit the shrimp aquaculture industry towards the production of mono-sex stocks. Based on the data used for high-density linkage map construction, linkage-mapping analysis was conducted. The sex determination region was mapped in linkage group (LG) 18. A large region from 0 to 21.205 cM in LG18 showed significant association with sex. However, none of the markers in this region showed complete association with sex in the other populations. So an association analysis was designed using the female parent, pool of female progenies, male parent, and pool of male progenies. Markers were de novo developed and those showing significant differences between female and male pools were identified. Among them, three sex-associated markers including one fully associated marker were identified. Integration of linkage and association analysis showed that the sex determination region was fine-mapped in a small region along LG18. The identified sex-asso...Continue Reading

References

Apr 5, 2002·Genome Research·W James Kent
Apr 18, 2008·Sexual Development : Genetics, Molecular Biology, Evolution, Endocrinology, Embryology, and Pathology of Sex Determination and Differentiation·A CnaaniT D Kocher
Oct 29, 2008·The International Journal of Developmental Biology·Lucas Sánchez
Dec 9, 2009·Animal Genetics·Z-Q DuM F Rothschild
Jun 17, 2010·Genetic Epidemiology·Su Yeon KimRasmus Nielsen
May 16, 2015·Marine Biotechnology·Takashi KoyamaTakashi Sakamoto

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Citations

Dec 6, 2017·Marine Biotechnology·Grace LinGen Hua Yue
Mar 14, 2019·Marine Biotechnology·Bi Jun LiJun Hong Xia
Oct 6, 2020·Frontiers in Endocrinology·Tom Levy, Amir Sagi
Jan 14, 2020·Plant Science : an International Journal of Experimental Plant Biology·Maider AstorkiaEnrique Ritter
Nov 3, 2020·Journal of Invertebrate Pathology·Iasmim Santos Mangabeira-SilvaDaniel Carlos Ferreira Lanza

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Methods Mentioned

BETA
genotyping
PCR

Software Mentioned

MapQTL5
SNPassoc
JoinMap
R
BLAT

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