干旱区生态环境知识资源中心(Arid): Pollen contamination and mating patterns in a Prosopis alba clonal orchard: impact on seed orchards establishment

Arid

DOI	10.3832/ifor2936-012
	Pollen contamination and mating patterns in a Prosopis alba clonal orchard: impact on seed orchards establishment
	D’Amico, Ivan 1; Cesar Vilardi, Juan 1,2; Ofelia Saidman, Beatriz 1,2; Ewens, Mauricio 3; Bessega, Cecilia 1,2
通讯作者	Bessega, Cecilia
来源期刊	IFOREST-BIOGEOSCIENCES AND FORESTRY
ISSN	1971-7458
出版年	2019
卷号	12 页码:330-337
英文摘要	Prosopis alba (Leguminosae) is an important species from ecologic and economical points of view in arid and semi-arid regions of Argentina. In several open-pollinated species, pollen contamination from off-orchard parents and selfing have been proven to reduce orchard seed quality. In 2002, the first clonal orchard of Prosopis alba was established in Fernandez (Santiago del Estero, Argentina) with 12 trees phenotypically selected from a progeny trial, based on height, pod production per year and pod sweetness. The aim of this study was to evaluate the mating patterns and pollen contamination rate in the orchard using ten SSR markers and paternity analysis. All the clones together with the progeny of a single clone (open-pollinated seeds) were genotyped. Data was processed by two different methods based on likelihood and Bayesian approaches, respectively. A high consistency (89%) of results was observed between the two methods, and pollen contamination rate was estimated between 27% and 37%. The minimum number of different pollen donors per mother plant varied from three to five and selfing occurrence was low (<1.6%). Based on the estimated status number (N-s = 4.4), the expected coancestry in the seed crop is equal to a Mendelian population with an effective size of 4-5 individuals. Genetic analyses are encouraged during the establishment and monitoring of trials in forest breeding and management programmes. It is strongly recommended to establish seed orchards in isolated areas and to guarantee equal representation of parental genotypes in the orchards.
英文关键词	Cervus MasterBayes Microsatellites Paternity Analysis Mesquite Prosopis alba Seed Orchard
类型	Article
语种	英语
国家	Argentina
开放获取类型	gold, Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000475689300002
WOS关键词	GENE FLOW ; DISPERSAL ; SYSTEM ; LEGUMINOSAE ; POLLINATION ; ARGENTINA ; PHENOLOGY ; INFERENCE ; SOFTWARE ; PROGENY
WOS类目	Forestry
WOS研究方向	Forestry
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216261
作者单位	1.Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Ecol Genet & Evoluc, Buenos Aires, DF, Argentina; 2.CONICET UBA, Inst Ecol Genet & Evoluc IEGEBA, Buenos Aires, DF, Argentina; 3.UCSE, Estn Expt Fernandez, Santiago Del Estero, Argentina
推荐引用方式 GB/T 7714	D’Amico, Ivan,Cesar Vilardi, Juan,Ofelia Saidman, Beatriz,et al. Pollen contamination and mating patterns in a Prosopis alba clonal orchard: impact on seed orchards establishment[J],2019,12:330-337.
APA	D’Amico, Ivan,Cesar Vilardi, Juan,Ofelia Saidman, Beatriz,Ewens, Mauricio,&Bessega, Cecilia.(2019).Pollen contamination and mating patterns in a Prosopis alba clonal orchard: impact on seed orchards establishment.IFOREST-BIOGEOSCIENCES AND FORESTRY,12,330-337.
MLA	D’Amico, Ivan,et al."Pollen contamination and mating patterns in a Prosopis alba clonal orchard: impact on seed orchards establishment".IFOREST-BIOGEOSCIENCES AND FORESTRY 12(2019):330-337.