1 Introduction The genus Muntiacus is a group of animals with unique karyotypes. The diploid chromosome number within this genus varies greatly from 6 ♀, 7♂ for the Indian muntjac to 46 for the Chinese muntjac. They...1 Introduction The genus Muntiacus is a group of animals with unique karyotypes. The diploid chromosome number within this genus varies greatly from 6 ♀, 7♂ for the Indian muntjac to 46 for the Chinese muntjac. They are ideal models for the study of chromosomal evolution. Some muntjacs have been studied in terms of morphology,展开更多
Twelve restriction endonucleases were employed to analyze the mitochondrial DNA of four species of muntjacs and two related species of deer: red muntjac (M. muntjak), Gongshan muntjac (M. gongshanensis ), black muntja...Twelve restriction endonucleases were employed to analyze the mitochondrial DNA of four species of muntjacs and two related species of deer: red muntjac (M. muntjak), Gongshan muntjac (M. gongshanensis ), black muntjac (M. crinifrons), Chinese muntjac (M. reevesi), tufted deer (Elaphodus cephalophus), and forest musk deer (Moschus berezovskii). A total of 170 restriction fragments were detected among the samples. Fragments data were used to calculate the genetic distance (i. e. percent sequence divergency) among species, which in turn were used to construct a phylogenetic tree and to estimate divergency times. Our analysis indicates that the black muntjac and the Gongshan muntjac are most closely related, and that they are closely realted to the red muntjac and the Chinese muntjac. Additionally, the tufted deer is genetically closer to muntjacs than the musk deer is.展开更多
We s tudied seasonal habitat use of black muntjacs in the Jiulong Mount ain and Gutian Mountain Nature Reserves in Zhejiang Province, April 2002-Decembe r 2003 based on indirect sign (e.g., tracks, feces). We assumed ...We s tudied seasonal habitat use of black muntjacs in the Jiulong Mount ain and Gutian Mountain Nature Reserves in Zhejiang Province, April 2002-Decembe r 2003 based on indirect sign (e.g., tracks, feces). We assumed that abun dance of sign functioned as a surrogate for intensity of use. During the 20-mon t h sampling period, we quantified 11 ecological factors in 141 sample plots. Black muntjac vegetation use varied significantly with season. Variati on in muntjac use of vegetation types were primarily related to seasonal changes of food resources and concealment conditions. Durin g spring, autumn and winter, muntjacs mostly used middle and lower portions of mountainsides, whereas they used upper portions of mountains during summer. Varying seasonal use of elevation mos t likely accounted for slope effects. We found no evidence of seasonal va riation in muntjac use of slope, aspect, rock exposur e, distance from water or level of human disturbance.展开更多
黑麂,为我国特有动物,被公认为目前世界上最珍稀的鹿科动物之一。为了更好地保护黑麂这一珍稀的濒危野生动物,基于黑麂线粒体控制区序列对遂昌分布中心的3个黑麂种群的遗传多样性和基因流进行了研究。结果显示,3个种群的36个个体中有13...黑麂,为我国特有动物,被公认为目前世界上最珍稀的鹿科动物之一。为了更好地保护黑麂这一珍稀的濒危野生动物,基于黑麂线粒体控制区序列对遂昌分布中心的3个黑麂种群的遗传多样性和基因流进行了研究。结果显示,3个种群的36个个体中有13个变异位点,占分析序列长度的2.71%,且这13个变异位点皆为碱基置换,并未出现碱基插入或缺失的现象,并由此定义了12个单倍型。遗传多样性检测结果显示遂昌种群具有最高的遗传多样性,应予以优先保护。从Tajima′sD和Fu and Li′sD值的估算结果来看,这3个黑麂种群相对于中性进化的歧异度并没有明显的偏离(P>0.1),没有明显的证据显示这3个黑麂种群间存在很强的平衡选择。3个种群间基因流Nm均大于1,这3个黑麂种群间存在着较为丰富的基因流。3个黑麂种群单倍型间的序列差异为0.009,这表明这3个黑麂种群的单倍型未出现分化。展开更多
文摘1 Introduction The genus Muntiacus is a group of animals with unique karyotypes. The diploid chromosome number within this genus varies greatly from 6 ♀, 7♂ for the Indian muntjac to 46 for the Chinese muntjac. They are ideal models for the study of chromosomal evolution. Some muntjacs have been studied in terms of morphology,
基金Project supported by the National Natural Science Foundation of China.
文摘Twelve restriction endonucleases were employed to analyze the mitochondrial DNA of four species of muntjacs and two related species of deer: red muntjac (M. muntjak), Gongshan muntjac (M. gongshanensis ), black muntjac (M. crinifrons), Chinese muntjac (M. reevesi), tufted deer (Elaphodus cephalophus), and forest musk deer (Moschus berezovskii). A total of 170 restriction fragments were detected among the samples. Fragments data were used to calculate the genetic distance (i. e. percent sequence divergency) among species, which in turn were used to construct a phylogenetic tree and to estimate divergency times. Our analysis indicates that the black muntjac and the Gongshan muntjac are most closely related, and that they are closely realted to the red muntjac and the Chinese muntjac. Additionally, the tufted deer is genetically closer to muntjacs than the musk deer is.
文摘We s tudied seasonal habitat use of black muntjacs in the Jiulong Mount ain and Gutian Mountain Nature Reserves in Zhejiang Province, April 2002-Decembe r 2003 based on indirect sign (e.g., tracks, feces). We assumed that abun dance of sign functioned as a surrogate for intensity of use. During the 20-mon t h sampling period, we quantified 11 ecological factors in 141 sample plots. Black muntjac vegetation use varied significantly with season. Variati on in muntjac use of vegetation types were primarily related to seasonal changes of food resources and concealment conditions. Durin g spring, autumn and winter, muntjacs mostly used middle and lower portions of mountainsides, whereas they used upper portions of mountains during summer. Varying seasonal use of elevation mos t likely accounted for slope effects. We found no evidence of seasonal va riation in muntjac use of slope, aspect, rock exposur e, distance from water or level of human disturbance.
文摘黑麂,为我国特有动物,被公认为目前世界上最珍稀的鹿科动物之一。为了更好地保护黑麂这一珍稀的濒危野生动物,基于黑麂线粒体控制区序列对遂昌分布中心的3个黑麂种群的遗传多样性和基因流进行了研究。结果显示,3个种群的36个个体中有13个变异位点,占分析序列长度的2.71%,且这13个变异位点皆为碱基置换,并未出现碱基插入或缺失的现象,并由此定义了12个单倍型。遗传多样性检测结果显示遂昌种群具有最高的遗传多样性,应予以优先保护。从Tajima′sD和Fu and Li′sD值的估算结果来看,这3个黑麂种群相对于中性进化的歧异度并没有明显的偏离(P>0.1),没有明显的证据显示这3个黑麂种群间存在很强的平衡选择。3个种群间基因流Nm均大于1,这3个黑麂种群间存在着较为丰富的基因流。3个黑麂种群单倍型间的序列差异为0.009,这表明这3个黑麂种群的单倍型未出现分化。
