苔藓植物生殖生态学研究苔藓植物生殖生态学研究.pdfVIP

23 11 Vol. 23, No . 11 2003 11 ACT A ECOLOGICA SINICA Nov . , 2003 1 1 2 王中生, 安树青, 方炎明 ( 1. ,210093; 2. , 210037) : , , ; , ( ) , ; , , , : ; ; ; ; Review of reproductive ecology of Bryophytes - 1, - 1, - 2( 1. S chool of L if e Science, N anj ing U- WANG Zhong Sheng AN Shu Qing FANG Yan M ing niv ersity , N anj ing 210093, Ch ina; 2. College of F orest R esour ces Env ir onment , N anj ing F or estry Univ ersity , N an- j ing 210037, China) .Acta Ecologi ca Si nica , 2003, 23( 11) : Abstract: Recently investigations on reproductive ecology of Bryophytes have got remarkably progresses, mainly including breeding system, cost and strategy of reproduction, as w ell as influence of reproductive . pattern on genetic diversity of population Ratios of sexual reproduction were low because of prim itive re- . productive patt ern w ith part icular requirem ent of water and common dioecious phenomenon Frequency of sexual reproduction was especially low in female ( from gam ete production through sporophyt e maturation) , so the cost of realized sexual reproduction incurred by fem ale was restricted t o sex expression ( ) . , , gam ete production On average male incurred a great er cost in gamete product ion than female did so - . that female dominat ed sex ratio might be a product of a higher average cost of sex expression in male S