Spatial genetic structure of clonal and sexual reproduction in populations of Adenophora grandiflora (Campanulaceae)

被引:0
作者
Chung, MG [1 ]
Epperson, BK
机构
[1] Gyeongsang Natl Univ, Dept Biol, Chinju 660701, South Korea
[2] Michigan State Univ, Dept Forestry, E Lansing, MI 48824 USA
关键词
Adenophora grandiflora; allozymes; endemic species; genetic structure; protandry; spatial autocorrelation;
D O I
10.2307/2640812
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
The spatial distribution of clonal versus sexual reproduction in plant populations should generally have differing effects on the levels of biparental inbreeding and the apparent selfing rate, produced via mating by proximity through limited pollen dispersal. We used allozyme loci, join-count statistics, and Moran's spatial autocorrelation statistics to separate the spatial genetic structure caused by clonal reproduction from that maintained in sexually reproduced individuals in two populations of Adenophora grandiflora, a perennial herb. Join-count statistics showed that there were statistically significant clustering of clonal genotypes within distances less than 4 m. Both the entire populations and the sets of sexually reproduced individuals exhibited significant spatial autocorrelation at less than about 12 m, and the sexually reproduced individuals are substantially structured in an isolation-by-distance manner, consistent with a neighborhood size of about 50.
引用
收藏
页码:1068 / 1078
页数:11
相关论文
共 64 条
[1]   CLONAL STRUCTURE, GENOTYPIC DIVERSITY, AND SEED PRODUCTION IN POPULATIONS OF FILIPENDULA-RUBRA (ROSACEAE) FROM THE NORTHCENTRAL UNITED-STATES [J].
ASPINWALL, N ;
CHRISTIAN, T .
AMERICAN JOURNAL OF BOTANY, 1992, 79 (03) :294-299
[2]   A QUASI-EQUILIBRIUM THEORY OF THE DISTRIBUTION OF RARE ALLELES IN A SUBDIVIDED POPULATION [J].
BARTON, NH ;
SLATKIN, M .
HEREDITY, 1986, 56 :409-415
[4]   SPATIAL AND GENETIC-STRUCTURE OF 2 SANDHILLS OAKS - QUERCUS LAEVIS AND QUERCUS-MARGARETTA (FAGACEAE) [J].
BERG, EE ;
HAMRICK, JL .
AMERICAN JOURNAL OF BOTANY, 1994, 81 (01) :7-14
[5]   Quantification of genetic diversity at allozyme loci [J].
Berg, EE ;
Hamrick, JL .
CANADIAN JOURNAL OF FOREST RESEARCH, 1997, 27 (03) :415-424
[6]   ENZYME POLYMORPHISM IN PLANT-POPULATIONS [J].
BROWN, AHD .
THEORETICAL POPULATION BIOLOGY, 1979, 15 (01) :1-42
[7]  
Cheliak W. M., 1984, PIX42 PET NAT FOR I, P1
[8]   Spatial genetic structure in populations of Hosta capitata and Hosta minor (Liliaceae) [J].
Chung, MG ;
Park, KB .
ISRAEL JOURNAL OF PLANT SCIENCES, 1998, 46 (03) :181-187
[9]   Comparisons of genetic diversity in a narrow endemic, Impatiens hypophylla, and in its widespread congener .1. Textori (Balsaminaceae) [J].
Chung, MG ;
Kang, SS .
NORDIC JOURNAL OF BOTANY, 1996, 16 (04) :359-365
[10]   GENETIC-VARIATION AND POPULATION-STRUCTURE IN KOREAN POPULATIONS OF EURYA-JAPONICA (THEACEAE) [J].
CHUNG, MG ;
KANG, SS .
AMERICAN JOURNAL OF BOTANY, 1994, 81 (08) :1077-1082