Phenotypic and genotypic variability of F-2 plants derived from Jatropha curcas x integerrima hybrid

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	Phenotypic and genotypic variability of F-2 plants derived from Jatropha curcas x integerrima hybrid
	One, K. T.
刊名	Biomass & Bioenergy
	2014
卷号	67 页码:137-144
ISSN号	0961-9534
中文摘要	Phenotypic and genotypic variability were evaluated in a population of 227 F-2 plants derived from an interspecific cross between Jatropha curcas (cv. "Chai Nat") and Jatropha integerrima (local dwarf ornamental type) from Thailand. The objective of this study was to assess the range of variability for 13 phenotypic characters and 16 EST-SSR markers observed in the population. A high variation was found in morphological characters showing many superior genotypes over the J. curcas parent. The results of molecular parameters also suggested a high level of genetic variability in the current population with 100% of polymorphic loci (PPL) for all 16 SSR primers used. The mean numbers of observed alleles (Na) and effective alleles (Ne) were 2.13 and 1.81, respectively. The polymorphic information index (PIC) ranged from 0.17 to 0.55 with an average of 0.34. The average values of Nei's genetic diversity (He), observed heterozygosity (Ho), and Shannon's information index (I) were 0.43, 0.47, and 0.64, respectively. Jaccard's similarity coefficient ranged from 0.51 to 0.96 with a continuous distribution. The UPGMA-based dendrogram could not classify the F-2 plants into clusters, but separated them into three sub-groups and seven distinct plants at 61% similarity. The information generated from the current research will be of great benefit to jatropha breeding program; providing a new gene source to the currently low variation in J. curcas. (C) 2014 Elsevier Ltd. All rights reserved.
公开日期	2015-01-28
内容类型	期刊论文
源URL	[http://ir.xtbg.org.cn/handle/353005/7612]
专题	西双版纳热带植物园_热带植物资源可持续利用重点实验室特色文献_小桐子相关文献
推荐引用方式 GB/T 7714	One, K. T.. Phenotypic and genotypic variability of F-2 plants derived from Jatropha curcas x integerrima hybrid[J]. Biomass & Bioenergy,2014,67:137-144.
APA	One, K. T..(2014).Phenotypic and genotypic variability of F-2 plants derived from Jatropha curcas x integerrima hybrid.Biomass & Bioenergy,67,137-144.
MLA	One, K. T.."Phenotypic and genotypic variability of F-2 plants derived from Jatropha curcas x integerrima hybrid".Biomass & Bioenergy 67(2014):137-144.