JOURNAL OF NATURAL RESOURCES ›› 1987, Vol. 2 ›› Issue (2): 106-115.doi: 10.11849/zrzyxb.1987.02.002

• Special Column:Celebration of the 70th Anniversary of IGSNRR, CAS • Previous Articles     Next Articles

CHROMOSOMES AND HAEMOGLOBIN OF TAN SHEEP AND THEIR GEOGRAPHICAL DIFFERENTIATION

Shen Changjiang, Guo Aipu, Wang Shiquan   

  1. Commission for Integrated Survey of Natural Resources, Chinese Academy of Sciences
  • Online:1987-06-25 Published:1987-06-25

Abstract: The regional differentiation of chromosomes and haemoglobin of Tan Sheep, a special fur breed in dry semi-desert in the Northwest of China, were studied with the ecogeographical points of view and methods, and the interesting results had been discovered. The fur charac-terestics, the chromosomal aberrations, the types of haemoglobin (Hb), and the other economic performances of the populations distributed in the desert, desert-steppe and dry steppe regions had been examined. The same items were also examined in the population of Mongolian Sheep, the ancestor of Tan Sheep, but is distributed in Inner-Mongolia Plateau. The regularity of geographical differentiation is concerned with the same differentiation of natural environments. Five parts of this paper are: 1) the main characteristics of the populations of Tan Sheep; 2) the ecological environments of those populations; 3) the regional differentiations of chromosomes; 4) the regional differentiations of haemoglobin (Hb); and 5) conclusions.