福建省的野生果树种质资源

结合有关文献,对福建省的野生果树种质资源进行了调查,结果表明:福建省野生果树种质资源有44科82属256种和26变种。这些野生果树主要集中在蔷薇科、壳斗科、芸香科、猕猴桃科、葡萄科。福建省野生果树乔木类有122种,灌木类有114种,藤本类有38种,草本类有8种。此外,还对野生果树的开发利用前景进行了分析。     

Molecular evidence for the lack of transmission of the monogenean Sparicotyle chrysophrii (Monogenea, Polyopisthocotylea) and isopod Ceratothoa oestroides (Crustacea, Cymothoidae) between wild bogue (Boops boops) and cage-reared sea bream (Sparus aurata) and sea bass (Dicentrarchus labrax)

In the Mediterranean area, wild fish have often been suggested as either the reservoirs of the causative agents or at least the carriers of the pathogens responsible for disease outbreaks in cultured fish. However, no epidemiological investigations on actual pathogen/disease interactions between farmed and wild fish have been conducted even for the most important fish pathogens. Only sporadic isolations and identifications of various pathogens in wild fish have been done and real associations with the pathological conditions that exist within the farm environment and vice versa have not been established. Monogenean ectoparasite Sparicotyle chrysophrii and isopod Ceratothoa oestroides are commonly found in the Mediterranean cage-reared sea bream and sea bass and in the surrounding wild fish population. Both species were recognized as pathogens that seasonally inflict serious losses in fingerlings and juveniles of sea bream and sea bass, being potentially propagated and exchanged during wild and caged fish interaction. In order to evaluate the degree of pathogens transfer between wild and farmed fish, we investigated genetic population structures of these two important parasitic pathogens inferred by mtDNA cytochrome oxidase I locus. Parasites isolated from wild and farmed fish on the two most productive Adriatic fish farms showed genetic heterogeneity, contradicting widely accepted hypothesis of cross-contamination, at least in case of S. chrysophrii and C. oestroides. As far as we know, this is the first report that in a study of pathogen transfer molecular evidence was employed to asses the genetic population structure of shared parasites.     

我国5个青蛤地理群体形态差异分析

运用3种多元统计分析方法,比较研究了我国青蛤5个地理群体(福建、浙江、江苏、天津及辽宁)的形态差异。选择了14个可量性状和6个地区生态特征参数进行主成分分析和聚类分析。结果表明,江苏、天津和辽宁的形态较接近,其中福建群体的趋异差异最大。主成分分析构建了3个主成分。其贡献率:主成分1为28.05%,主成分2为18.6%,主成分3为14.0%,累计贡献率为60.65%。逐步判别选入8个贡献率较大的性状进行判别分析。结果显示,5个群体形态差异显著(P<0.01)。建立了5群体判别函数,其判别准确率P1为35%~90%,P2为73.7%~86%。综合判别率为67.5%。青蛤形态学差异是遗传和环境共同作用的结果,结合分子遗传学研究将更准确地描述青蛤5群体间的遗传特性,为今后种质资源保护及遗传育种提供依据。     

贵州不同海拔高度野生香菇的成分及分布研究

通过对贵州野生香菇的分布、形态特征、生长基物和成分分析的研究,为贵州野生香菇的性状保存和开发利用提供科学依据。     

高寒地区野生垂穗披碱草农艺性状及生产性能评价

对采自青海省不同海拔和不同地区的7份野生垂穗披碱草(Elymus nutans Griseb.)在西宁地区对其农艺性状及生产性能进行评价,为青藏高原地区筛选育种材料提供理论依据.结果表明:7份材料中采自海南州同德县高寒草甸海拔3201m的4号材料产草量最高,可作为饲草型牧草进行选育；采白果洛州玛多县高寒草原海拔4385m的1号材料表现出较好的综合生产性能和适应性,可作为饲草兼产籽型牧草进行选育.     

赣州市野生动物资源现状及保护利用对策

分析赣州市野生动物资源现状,提出保护利用对策。     

野生稻抗病虫基因的挖掘和利用

本文综合国内外文献,简要介绍了野生稻抗病虫基因发掘、定位、克隆及育种应用研究的进展,讨论了野生稻优异抗病虫基因在水稻育种中的应用前景。     

广东海陵岛滨海植物资源调查与造景应用效果研究

通过调查广东海陵岛的野生植物资源,共记录了38科76种滨海植物,并以植物的生长繁殖力、耐盐性、抗病虫害能力、耐修剪性和观赏效果为5项指标,筛选出18种最适宜滨海园林应用的植物,其中应用在保利银滩项目中的木麻黄、马鞍藤和草海桐,具有较强抵御滨海恶劣气候的能力。     

莆田老鹰尖自然保护区野生食用菌资源调查

首次对莆田老鹰尖自然保护区的野生食用菌资源进行实地调查、收集、鉴定,得出该区有22科、95种野生食用菌资源。     

呼玛县林业局野生蓝莓人工抚育技术探讨

文章详细介绍了呼玛县林业局野生蓝莓分布、生物学特性以及提高野生蓝莓产量和质量的抚育技术。