MOLE RAT SPALAX - EVOLUTIONARY SIGNIFICANCE OF CHROMOSOME VARIATION

被引：127

作者：

WAHRMAN, J

GOITEIN, R

NEVO, E

机构：

[1] Laboratory of Genetics, Hebrew University, Jerusalem

来源：

SCIENCE | 1969年 / 164卷 / 3875期

关键词：

D O I：

10.1126/science.164.3875.82

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Four forms of mole rats with diploid numbers of chromosomes of 52, 54, 58, and 60, respectively, were found in Israel and the vicinity. The differences between the chromosome sets are due to whole-arm (Robertsonian) changes and pericentric inversions. The geographic distribution of the different forms is contiguous. Only a few hybrid individuals have been discovered. These chromosome forms are tentatively considered as sibling species, almost completely isolated by cytogenetic and possibly ethological mechanisms. The weak dispersal powers of mole rats may have contributed to a rapid fixation of adaptive homozygous chromosomal changes.

引用

页码：82 / &

共 9 条

[1]

BENIRSCHKE K, 1969, COMPARATIVE MAMMA ED

[2]

Ellerman J.R., 1951, CHECKLIST PALAEARCTI

[3]

Nevo E., 1961, Mammalia Paris, V25, P127, DOI 10.1515/mamm.1961.25.2.127

[4] MOLE RAT SPALAX EHRENBERGI - MATING BEHAVIOR AND ITS EVOLUTIONARY SIGNIFICANCE [J].