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自然定居青冈幼苗的亲本分析-植物科学学报
2000, 18( 3) : 174180
J ournal of Wuha n Botanica l Resear ch
陈小勇 宋永昌
( 200062)
5
, 71. 57% 1 ,
1 2 ,
4 1. 18% , , 17. 65% ,
9 0 24 , 39. 4% ,
18. 4% 510 m ,
62. 5% ; 1015 m, 05 m ;
, ( 30 ) , ,
, , , ,
+
: Q346 . 5: A : 1000-470X( 2000) 03-0 174-07
ANALYSIS OF PARENTAGE FOR NATURALLY ESTAB-
LISHED SEEDLINGS OF CYCLOBALAN OPSI S GLA UCA
Chen Xiaoyon Son Yon chan
( Dep artment of Env ironmental S ciences, E ast China Normal Univ er sity Shan hai200062)
Abstract Parenta e of Cy clobalanop s is glauca seedlin s in a small population w as analyzed
by enet ic ex clusion and most-likely analy sis usin five polymorphic isozymic loci. The
cumulative ex clusion probabilit y w as 71. 57% . Genet ic exclusion only ident ified one parent
pair for one seedlin , and most seedlin s have more than one pair of parent. Likelihood
analy sis identif ied one or two parent pairs for t he seedlin s. 41. 18% of the total seedlin s
w ere row n from seeds produced by selfin and 17. 65% of the seedlin s w ere from seeds
fert ilized w it h pollen out of the population. Reproductive success ( RS ) of adult s varied
. 0, . 24 ( 39. 4% ) .
reatly RS of nine adults w as and individual No had t he hi hest RS T he RS
of plant s out of the populat ion w as 18. 4% . Dispersal dist ances of C. glauca seeds calculat ed
accordin to the distance of seedlin to parent were mainly 510 m( 62. 5% ) , secondly was
10 15 m and only 3. 1% was 5m . Thou h ravity is the m ain mechanism of seed
: 1999-03-22, : 1999-07-14: , 19678, ( ) ,
( 393701
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