Mating system and seed variation of Acacia hybrid (A-mangium x A-auriculiformis)

被引：9
|
作者：
Ng, Chin-Hong [1 ]
Lee, Soon-Leong [1 ]
Ng, Kevin Kit-Siong [1 ]
Muhammad, Norwati [1 ]
Ratnam, Wickneswari [2 ]
机构：
[1] Forest Res Inst Malaysia, Forest Biotechnol & Pharmaceut Programme, Genet Unit, Kepong 52109, Malaysia
[2] Univ Kebangsaan Malaysia, Fac Sci & Technol, Sch Environm & Nat Resource Sci, Bangi 43600, Malaysia
来源：
JOURNAL OF GENETICS | 2009年 / 88卷 / 01期
关键词：
Acacia hybrid; allozyme; mating system; RAPD; seed variation; SELF-FERTILIZATION; GENETIC DIVERSITY; PATTERNS; POLYMORPHISMS; HYBRIDIZATION; EUCALYPTUS; BIOLOGY; MARKERS; BENTH;
D O I：
10.1007/s12041-009-0004-3
中图分类号：
Q3 [遗传学];
学科分类号：
071007 ; 090102 ;
摘要：
The mating system and seed variation of Acacia hybrid (A. mangium x A. auriculiformis) were studied using allozymes and random amplified polymorphic DNA (RAPD) markers, respectively. Multi-locus outcrossing rate estimations indicated that the hybrid was predominantly outcrossed (mean +/- s.e. t (m) = 0.86 +/- 0.01). Seed variation was investigated using 35 polymorphic RAPD fragments. An analysis of molecular variance (AMOVA) revealed the highest genetic variation among seeds within a pod (66%-70%), followed by among pods within inflorescence (29%-37%), and the least variation among inflorescences within tree (< 1%). In addition, two to four RAPD profiles could be detected among seeds within pod. Therefore, the results suggest that a maximum of four seeds per pod could be sampled for the establishment of a mapping population for further studies.
引用
收藏
页码：25 / 31
页数：7
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