SPERM BUNDLES AND PHYLOGENESIS

被引:61
作者
VIRKKI, N
机构
[1] Department of Genetics, Agricultural Experiment Station, University of Puerto Rico, Río Piedras
来源
ZEITSCHRIFT FUR ZELLFORSCHUNG UND MIKROSKOPISCHE ANATOMIE | 1969年 / 101卷 / 01期
关键词
Alticidae; Coleoptera; Phylogenesis; Sperm bundles; Spermatogenesis;
D O I
10.1007/BF00335583
中图分类号
Q2 [细胞生物学];
学科分类号
071009 ; 090102 ;
摘要
The beetle family Altioidae contains some very archaic surviving species, and at the same time, very modern ones. In one lineage from archaic to modern (Fornterita - Alticini - Oedionychini), the number of spermatozoa has been stepwise (according to a geometric series, 2n) reduced from 256 to 16 per bundle. Comparison with the relatively few data in literature show that this trend is common in insects: more archaic orders have more sperm cells per bundle than the more modern ones, and within an order, the most modern or most specialized groups tend to have least. The reduced number of spermatozoa per bundle may be a sign of reduced sperm production in general, and this probably has adaptive value in limiting genetic variability. A small number of spermatozoa per bundle is sometimes accompanied by an extra large size of spermatocytes. Except for the alticid subtribe Oedionychina, it is hard to see what adaptive value this could have. In the Oedionychines, the large size of the spermatocytes is a prerequisition for the evolution of gigantism of the asynaptic sex chromosomes. © 1969 Springer-Verlag Berlin Heidelberg.
引用
收藏
页码:13 / &
相关论文
共 54 条
[1]  
BECHYNE J, 1968, PERSONAL COMMUNICATI
[2]  
BECHYNE J, 1969, PERSONAL COMMUNICATI
[3]  
BECHYNE J, 1967, PERSONAL COMMUNICATI
[4]  
Blackman M.W., 1901, KANSAS U Q, V10, P61
[5]  
BLACKMAN MW, 1905, B MUS COMP ZOOL HARV, V48, P1
[6]  
BLACKMAN MW, 1905, P AMER ACAD ARTS SCI, V41, P329
[7]  
BLACKMAN MW, 1907, P AM ACAD ARTS SCI, V42, P487
[8]   ON TYPES OF SPERM ASSOCIATION IN ORTHOPTERA [J].
CANTACUZENE, AM .
ZEITSCHRIFT FUR ZELLFORSCHUNG UND MIKROSKOPISCHE ANATOMIE, 1968, 90 (01) :113-+
[9]  
Cooper KW, 1950, BIOL DROSOPHILA, P1
[10]  
CRETSCHMAR MAX, 1928, ZEITSCHR WISS BIOL ABT B ZEITSCHR ZELLFORSCH U MIKR ANAT, V7, P290, DOI 10.1007/BF00372489