马尾松种子园的遗传多样性与父本分析

doi:10.11707/j.1001-7488.20061126

Scientia Silvae Sinicae ›› 2006, Vol. 42 ›› Issue (11): 146-150.doi: 10.11707/j.1001-7488.20061126

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Genetic Diversity and Paternity Analysis of a Seed Orchard in Pinus massoniana

Ai Chang^1,2,Xu Li'an¹,Lai Huanlin¹,Huang Minren¹,Wang Zhangrong¹

1.Key Laboratory of Forest Genetics and Gene Engineering of the State Forestry Administration Nanjing Forestry University Nanjing 210037;2.Office of Forestry Resources Supervision and Administration,the State Forestry Administration Beijing 100714

Received:2005-10-25 Revised:1900-01-01 Online:2006-11-25 Published:2006-11-25

Abstract

Abstract:

Eleven microsatellite(SSR)markers were used to evaluate the genetic diversity and paternal parents of a seed orchard for Pinus massoniana planted at Wuyi Forest Farm,Fujian Province.The seed orchard contains 286 open-pollinated progenies derived from 129 candidate paternal clones and three maternal trees.Both the parental and progeny populations displayed high genetic diversity(h),with the estimated h values of 0.543 8 and 0.455 6,respectively.Paternal clones contributed differently to the progeny;only 5.3%～15.8% clones contributed 27.08%～48.96% pollen.More strikingly,one paternal clone contributed 10% and 17% pollen,respectively,to two maternal trees.It was found that the mating compatibility of a clone was not related to its origin.There was no significant influence of the physical location of a clone on the amount of paternal constituent and genetic diversity.The rate of contamination by pollen outside the seed orchard was as high as 9.44%.No selfing progeny was observed,suggesting that selfing depression will not be an issue in the seed orchard of P.massoniana.

Key words: Pinus massoniana, seed orchard, genetic diversity, paternity analysis, microsatellites(SSR)

Ai Chang;Xu Li'an;Lai Huanlin;Huang Minren;Wang Zhangrong. Genetic Diversity and Paternity Analysis of a Seed Orchard in Pinus massoniana[J]. Scientia Silvae Sinicae, 2006, 42(11): 146-150.

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Genetic Diversity and Paternity Analysis of a Seed Orchard in Pinus massoniana

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