Study on the Construction of Core Collection in Mini-watermelon

doi:10.7668/hbnxb.2015.S1.011

Abstract

Abstract: Abundant genetic resources could provide broad genetic foundation for plant breeding and genetic research.However,the drastic increase of genetic resources in recent years brought great difficulties for the preservation and utilization of germplasm.The construction of core collection has facilitated the research and utilization of genetic resources.410 mini-watermelon germplasm were used to construct core collection based on 6 fruit traits.The genotypic values were predicted by mixed linear model.The genetic distances among germplasm were calculated based on genotypic values.The unweighted pair-group average method was used for clustering analysis.The core collections of mini-watermelon were constructed with 20% sampling proportion.The genetic variations among core collections were evaluated through comparing mean,variance,range and coefficient of variation.The results showed that the Mahalanobis distance and deviation sampling were better than the Euclidean distance and preferred sampling,respectively.82 core resources acquired based on the Mahalanobis distance and deviation sampling could preserve the genetic diversity of the initial collection,which could provide important theoretical basis for the efficient utilization of mini-watermelon germplasm.

Key words: Mini-watermelon, Core collection, Genetic distance, Sampling strategies

CLC Number:

S651.03

LIU Zi-ji, ZHU Jie, DANG Xuan-min, ZHAN Yuan-feng. Study on the Construction of Core Collection in Mini-watermelon[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2015, 30(S1): 61-65. doi: 10.7668/hbnxb.2015.S1.011.

/ / Recommend / Download Citations

URL: http://www.hbnxb.net/EN/10.7668/hbnxb.2015.S1.011

http://www.hbnxb.net/EN/Y2015/V30/IS1/61

References

[1] Guo S,Zhang J,Sun H,et al.The draft genome of watermelon(Citrullus lanatus)and resequencing of 20 diverse accessions[J].Nature Genetics,2013,45(1):51-58.
[2] Hayashi T,Juliet P A,Matsui-Hirai H,et al.L-citruiline and L-arginine supplementation retards the progression of high-cholesterol-diet-induced atherosclerosis in rabbits[J].Proceedings of the National Academy of Sciences of the United States of America,2005,102(38):13681-13686.
[3] Collins J K,Wu G,Perkins-Veazie P,et al.Watermelon consumption increases plasma arginine concentrations in adults[J].Nutrition,2007,23(3):261-266.
[4] Perkins-Veazie P,Collins J K,Davis A R,et al.Carotenoid content of 50 watermelon cultivars[J].Journal of Agricultural and Food Chemistry,2006,54(7):2593-2597.
[5] Frankel O H,Brown A H D.Current plant genetic resources-a critical appraisal.Genetics:New Frontiers Vol.IV[M].New Delhi:Oxford and IBH Publishing,1984.
[6] Brown A H D.Core collection:A practical approach to genetic resources management[J].Genome,1989,31:818-824.
[7] 李自超,张洪亮,孙传清,等.植物遗传资源核心种质研究现状与展望[J].中国农业大学学报,1999,4(5):51-62.
[8] Zhang X R,Zhao Y Z,Cheng Y,et al.Establishment of sesame germplasm core collection in China[J].Genetic Resources and Crop Evolution,2000,47(3):273-279.
[9] 董英山.中国野生大豆遗传多样性及核心种质构建[D].长春:东北师范大学,2000.
[10] Zhang H L,Zhang D L,Wang M X,et al.A core collection and mini core collection of Oryza sativa L.in China[J].Theoretical and Applied Genetics,2011,122(1):49-61.
[11] Charmet G,Balfourier F.The use of geostatistics for sampling a core collection of perennial ryegrass populations[J].Genetic Resources and Crop Evolution,1995,42(4):303-309.
[12] Holbrook C C,Anderson W F.Evaluation of a core collection to identify resistance to late leafspot in peanut[J].Crop Science,1995,35(6):1700-1702.
[13] 朱军.作物杂种后代基因型值和杂种优势的预测方法[J].生物数学学报,1993,8(1):32-44.
[14] Mahalanobis P C.On the generalized distance in statistics[J].Proc Natl Inst Sci India,1936,2(1):49-55.
[15] Sokal R R,Michener C D.A statistical method for evaluating systematic relationships[J].Univ Kansas Sci Bull,1958,38(6):1409-1438.
[16] Hu J,Zhu J,Xu H M.Methods of constructing core collections by stepwise clustering with three sampling strategies based on the genotypic values of crops[J].Theoretical and Applied Genetics,2000,101(1/2):264-268.
[17] 徐海明,胡晋,朱军.构建作物种质资源核心库的一种有效抽样方法[J].作物学报,2000,26(2):157-162.
[18] 胡晋,徐海明,朱军.基因型值多次聚类法构建作物种质资源核心库[J].生物数学学报,2000,15(1):103-109.
[19] Basigalup D H,Barnes D K,Stucker R E.Development of a core collection for perennial Medicago plant introductions[J].Crop Sci,1995,35(4):1163-1168.
[20] Brown A H D.Core collections:A practical approach to genetic resources management[J].Genome,1989,31:818-824.

Please choose a citation manager

Content to export