NDLI: An Integrated Genetic and Cytogenetic Map of the Cucumber Genome

Content Provider	PubMed Central
Author	Ren, Yi Zhang, Zhonghua Liu, Jinhua Staub, Jack E. Han, Yonghua Cheng, Zhouchao Li, Xuefeng Lu, Jingyuan Miao, Han Kang, Houxiang Xie, Bingyan Gu, Xingfang Wang, Xiaowu Du, Yongchen Jin, Weiwei Huang, Sanwen
Editor	Ingvarsson, Pär K.
Copyright Year	2009
Abstract	The Cucurbitaceae includes important crops such as cucumber, melon, watermelon, squash and pumpkin. However, few genetic and genomic resources are available for plant improvement. Some cucurbit species such as cucumber have a narrow genetic base, which impedes construction of saturated molecular linkage maps. We report herein the development of highly polymorphic simple sequence repeat (SSR) markers originated from whole genome shotgun sequencing and the subsequent construction of a high-density genetic linkage map. This map includes 995 SSRs in seven linkage groups which spans in total 573 cM, and defines ∼680 recombination breakpoints with an average of 0.58 cM between two markers. These linkage groups were then assigned to seven corresponding chromosomes using fluorescent in situ hybridization (FISH). FISH assays also revealed a chromosomal inversion between Cucumis subspecies [C. sativus var. sativus L. and var. hardwickii (R.) Alef], which resulted in marker clustering on the genetic map. A quarter of the mapped markers showed relatively high polymorphism levels among 11 inbred lines of cucumber. Among the 995 markers, 49%, 26% and 22% were conserved in melon, watermelon and pumpkin, respectively. This map will facilitate whole genome sequencing, positional cloning, and molecular breeding in cucumber, and enable the integration of knowledge of gene and trait in cucurbits.
Related Links	http://dx.doi.org/10.1371/journal.pone.0005795
Starting Page	5795
File Format	PDF
ISSN	19326203
e-ISSN	19326203
Journal	PLoS ONE
Issue Number	6
Volume Number	4
Language	English
Publisher	Public Library of Science
Publisher Date	2009-06-01
Access Restriction	Open
Rights Holder	Public Library of Science
Subject Keyword	Biochemistry, Genetics and Molecular Biology(all) Agricultural and Biological Sciences(all) Medicine(all) Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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