中山大学学报(自然科学版)
中山大學學報(自然科學版)
중산대학학보(자연과학판)
ACTA SCIENTIARUM NATURALIUM UNIVERSITATIS SUNYATSENI
2014年
1期
106-112
,共7页
张蒙%饶健安%赵艳超%窦浩宇%徐眑%何淼
張矇%饒健安%趙豔超%竇浩宇%徐眑%何淼
장몽%요건안%조염초%두호우%서유%하묘
STR%MCOA%汉族%R
STR%MCOA%漢族%R
STR%MCOA%한족%R
STR%MCOA%Han nationality%R
探究我国不同行政区域汉族亚群间的分子遗传学关系一直是广受学术界关注的问题。短串联重复序列(STR)常应用于分子遗传学研究。综合采用了聚类分析、主成分分析和MCOA分析等统计学方法,对我国32个行政区域汉族亚群的9个常见STR基因座(D8S1179、D21S11、D7S820、D3S1358、D13S317、vWA、D18S51、D5S818、FGA)的等位基因频率数据进行了系统计算分析,初步探究了我国汉族亚群间的分子遗传关系、空间分布特征及分布格局的成因。研究发现,以长江为界,汉族可清晰地划分为南方汉族和北方汉族两大群体。北方汉族群体中,山东、天津与其它汉族亚群的遗传距离较大;南方汉族群体中,香港、海南和广西汉族亚群亲缘关系密切,但与南方其它汉族亚群遗传距离较大。厦门汉族亚群与北方汉族亚群的亲缘关系相对较近。主成分二维散点图从整体上体现出我国汉族亚群广分布、小聚集的空间分布格局。MCOA分析发现,形成我国汉族亚群目前分布格局的3个主要原因是:长江的地理隔离、历史上的洪涝灾害、战争或人祸引发的人口迁徙等。
探究我國不同行政區域漢族亞群間的分子遺傳學關繫一直是廣受學術界關註的問題。短串聯重複序列(STR)常應用于分子遺傳學研究。綜閤採用瞭聚類分析、主成分分析和MCOA分析等統計學方法,對我國32箇行政區域漢族亞群的9箇常見STR基因座(D8S1179、D21S11、D7S820、D3S1358、D13S317、vWA、D18S51、D5S818、FGA)的等位基因頻率數據進行瞭繫統計算分析,初步探究瞭我國漢族亞群間的分子遺傳關繫、空間分佈特徵及分佈格跼的成因。研究髮現,以長江為界,漢族可清晰地劃分為南方漢族和北方漢族兩大群體。北方漢族群體中,山東、天津與其它漢族亞群的遺傳距離較大;南方漢族群體中,香港、海南和廣西漢族亞群親緣關繫密切,但與南方其它漢族亞群遺傳距離較大。廈門漢族亞群與北方漢族亞群的親緣關繫相對較近。主成分二維散點圖從整體上體現齣我國漢族亞群廣分佈、小聚集的空間分佈格跼。MCOA分析髮現,形成我國漢族亞群目前分佈格跼的3箇主要原因是:長江的地理隔離、歷史上的洪澇災害、戰爭或人禍引髮的人口遷徙等。
탐구아국불동행정구역한족아군간적분자유전학관계일직시엄수학술계관주적문제。단천련중복서렬(STR)상응용우분자유전학연구。종합채용료취류분석、주성분분석화MCOA분석등통계학방법,대아국32개행정구역한족아군적9개상견STR기인좌(D8S1179、D21S11、D7S820、D3S1358、D13S317、vWA、D18S51、D5S818、FGA)적등위기인빈솔수거진행료계통계산분석,초보탐구료아국한족아군간적분자유전관계、공간분포특정급분포격국적성인。연구발현,이장강위계,한족가청석지화분위남방한족화북방한족량대군체。북방한족군체중,산동、천진여기타한족아군적유전거리교대;남방한족군체중,향항、해남화엄서한족아군친연관계밀절,단여남방기타한족아군유전거리교대。하문한족아군여북방한족아군적친연관계상대교근。주성분이유산점도종정체상체현출아국한족아군엄분포、소취집적공간분포격국。MCOA분석발현,형성아국한족아군목전분포격국적3개주요원인시:장강적지리격리、역사상적홍로재해、전쟁혹인화인발적인구천사등。
Exploring the molecular genetics relationships between Han subpopulations in different admin-istrative regions of China are always noticed by academics.Short tandem repeat (STR)has been often used in molecular genetics studies.The cluster analysis,principal component analysis and MCOA analy-sis had been used in this paper,we focused on the nine common STR loci (D8S1179,D21S11, D7S820,D3S1358,D13S317,vWA,D18S51,D5S818,FGA)allele frequency data of Han subpopula-tions from 32 administrative regions in China,in order to initially explore the molecular genetics relation-ships,the spatial distribution characteristics and distribution pattern of the Chinese Han subpopulations. The studies revealed that the Han nationality could be segregated into two groups which are the Southern and the Northern Han by the Yangtze River.In the Northern areas of China,the Han subpopulations from Shandong and Tianjin have large genetic distance with others;In the Southern areas,the genetic relation-ships within the Han subpopulations of Hong Kong,Hainan and Guangxi are much closed and greatly dif-ferent from the others.The Han subpopulation of Xiamen is comparatively closed to Northern Han.Prin-cipal component scatter plot reflects that the spatial distribution pattern of Han subpopulations is wide dis-tribution and gathered tightly in small areas in China.The three main factors contributing to the distribu-tion characteristics of Han subpopulations in China are geographic isolation by the Yangtze River,floods in history and the population migration caused by wars or disasters using MCOA analysis method.