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Wildlife Letters, Volume 1, Issue 1, Page 15-22, March 2023., 2023 Image of Chinese pangolin from study areas (top left), sampling location map (top right). Median joining network of Chinese pangolin population (size of circles represents the relative frequency of that haplotype present in the population). B) Demographic history of Chinese pangolin population estimated using Bayesian skyline plot.
Prajnashree Priyambada +11 more
wiley +1 more source
Modeling minimum viable population size with multiple genetic problems of small populations
Conservation Biology, Volume 36, Issue 5, October 2022., 2022 Abstract An important goal for conservation is to define minimum viable population (MVP) sizes for long‐term persistence of a species. There is increasing evidence of the role of genetics in population extinction; thus, conservation practitioners are starting to consider the effects of deleterious mutations (DM), in particular the effects of inbreeding
Peter Nabutanyi, Meike J. Wittmann
wiley +1 more source
滇重楼遗传多样性的AFLP分析 AFLP Analysis on Genetic Diversity of P. polyphylla var. yunnanensis
, 2018 目的：探索云南滇重楼(Paris polyphylla var. yunnanensis)种质资源的遗传多样性，为滇重楼种质资源保护、亲缘关系研究、品种选育和引种栽培提供分子生物学依据。方法：利用AFLP 标记对来自云南不同产地的15份滇重楼开展遗传多样性分析，采用NTSYS软件进行聚类和主坐标分析。结果：在物种水平上，多态位点百分率(PPL)为48.25%，Shannon信息指数(I)为0.3903，Nei’s基因多样性指数平均为0.2768群体总的遗传多样性(Ht)为0.2519 ...
李艳冰 +6 more
semanticscholar +1 more source
, 2017 以天津野生、天津养殖和海阳养殖群体三个半滑舌鳎群体为材料，利用2b-RAD测序筛选得到的32,746个SNP位点，利用SNP标记，进行群体遗传结构、遗传多样性和类群间遗传关系分析。每个SNP位点在所有群体内遗传变异(Fis)，群体间的遗传变异(Fst)，总变异(Fit)以及综合多位点的Fis，Fst和Fit估计值,表明3个群体两两群体间的Fst值从0.0731~0.1635不等。天津养殖群体和天津野生群体的遗传分化最小，天津养殖群体和海阳养殖群体以及天津野生群体和海阳养殖群体的遗传分化大 ...
贾磊 +4 more
semanticscholar +1 more source
千岛湖陆桥岛屿上黑腹狼蛛（Lycosa coelestris）遗传多样性及其受生境片段化的影响
, 2014 人工湖泊型陆桥岛屿对于理解生境片段化后片段面积和地理隔离等因素对物种遗传多样性和遗传结构的影响提供了独特的机会.本文利用相关序列扩增多态性（SRAP）分子标记法，对具有50多年片段化历史的千岛湖人工湖泊型陆桥岛屿上的黑腹狼蛛（ Lycosacoelestris ）种群遗传结构和多样性进行研究.利用5对SRAP引物对42份材料的基因组进行扩增，共得到大小为50~900bp的85个可重复位点，其中84个为多态性位点，多态性比率达98.82%.不同岛屿种群的多态位点比例（ PPB ）为15.29%~38.82%
罗媛媛 +3 more
semanticscholar +1 more source
, 2000 猕猴桃属（Ａｃｔｉｎｉｄｉａ）植物全世界有６６个种、约１１８个种下分类单位（变种、变型）。中国有猕猴桃属６２个种，猕猴桃遗传资源极为丰富。本文就猕猴桃的遗传资源多样性主要特点作概要综述：１）形态性状多样性（重要的园艺及经济性状）；２）营养成分及风味多样性；３）性别变异；４）染色体倍性变异；５）同工酶水平遗传多样性；６）ＤＮＡ水平遗传多样性。
李建强 +5 more
semanticscholar +1 more source
New Phytologist, Volume 247, Issue 2, Page 504-517, July 2025.Summary Repetitive DNA is a feature of all organisms, ranging from archaea and plants to humans. DNA repeats can be seen both in coding and in noncoding regions of the genome. Due to the recurring nature of the sequences, simple DNA repeats tend to be more prone to errors during replication and repair, resulting in variability in their unit length ...
Sridevi Sureshkumar +3 more
wiley +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2019 大花无柱兰是一种珍稀兰科植物，具有一定的观赏和药用价值，但数量十分稀少，该物种亟待保护。本研究采用SRAP 分子标记技术，对10 个居群的115 份DNA 样品进行PCR 扩增，并开展遗传多样性分析。从81 对引物中筛选出9 个条带清晰、多态性好、重复性高的引物组合，共扩增得到305 条谱带。在物种水平上，多态性比率（PPB） 为100%，Nei’s 基因多样性指数（H） 为0.209 8，Shannon’s 指数（I） 为0.340 2；在居群水平上，PPB 为24.59%～52.13%，H 为0 ...
ZHOUMengying(周梦莹) +6 more
doaj +1 more source
, 2012 利用泥鳅(Misgurnus anguillicaudatus)的微卫星引物跨种扩增大鳞副泥鳅(Paramisgurnus dabryanus),通过家系扩增、PCR产物测序筛选出6个座位,用于大鳞副泥鳅7个野生群体的遗传结构分析。结果显示,群体的平均等位基因数在3.167～4.833,平均观测杂合度(Ho)在0.248～0.417,平均期望杂合度(He)在0.379～0.505,多个座位存在零等位基因、杂合子缺失现象,显示大鳞副泥鳅种群遗传多样性较低。采用UPGMA法对7个群体基于DA遗传距离进行聚类,
俞小牧, 游翠红, 童金苟
core
New Phytologist, Volume 247, Issue 1, Page 144-159, July 2025.Summary Domesticated chickpea cultivars exhibit limited genetic diversity. This study evaluated the effects of chickpea domestication on phosphorus (P)‐use efficiency (PUE) under low‐P conditions, using a diverse Cicer collection, including wild species. Two wild Cicer species – 54 C. reticulatum accessions and 15 C. echinospermum accessions, and seven
Jiayin Pang +8 more
wiley +1 more source