自然定居青冈幼苗的亲本分析-植物科学学报.PDF

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