Variet^|^auml;tsbastarde bei Aegilops triuncialis L
نویسندگان
چکیده
منابع مشابه
Phenotypic Plasticity May Facilitate Invasion by Aegilops triuncialis
One great obstacle to understanding the invasion of nonnative species into native ecosystems is the lack of information on the population biology of the invading species. In particular, morphological and physiological adaptations and potential for phenotypic plasticity will strongly influence a species’ ability to persist and spread in newly invaded ecosystems. Phenotypic plasticity can buffer ...
متن کاملتولید آمفی پلوئیدهای مصنوعی از تلاقی برخی ارقام گندم نان با آجیلوپس‌تریانسیالیس (.Aegilops triuncialis L)
آجیلوپس تریانسیالیس (2n=4x=28; CtCtUtUt) یکی از گونههای تتراپلوئید جنس آجیلوپس و از منابع باارزش ژنهای مقاومت به تنشهای زیستی و غیرزیستی است. در این پژوهش، ارقام گندم نان (2n=6x=42; AABBDD) ’امید‘، ’نوید‘، ’زرین‘، ’پیشگام‘ و ’MV-17‘ با گونۀ آجیلوپس تریانسیالیس تلاقی داده شد و هیبریدهای F1 و F2 (حاصل از خودباروری F1) بررسی سیتوژنتیکی و مورفولوژیکی شدند. تفاوت معناداری بین تلاقیپذیری...
متن کاملPatterns of introduction and adaptation during the invasion of Aegilops triuncialis (Poaceae) into Californian serpentine soils.
Multiple introductions can play a prominent role in explaining the success of biological invasions. One often cited mechanism is that multiple introductions of invasive species prevent genetic bottlenecks by parallel introductions of several distinct genotypes that, in turn, provide heritable variation necessary for local adaptation. Here, we show that the invasion of Aegilops triuncialis into ...
متن کاملThe Variation Analysis of DNA Methylation in Wheat Carrying Gametocidal Chromosome 3C from Aegilops triuncialis
Gametocidal (Gc) chromosomes can ensure their preferential transmission by killing the gametes without themselves through causing chromosome breakage and therefore have been exploited as an effective tool for genetic breeding. However, to date very little is known about the molecular mechanism of Gc action. In this study, we used methylation-sensitive amplified polymorphism (MSAP) technique to ...
متن کاملWheat alleles introgress into selfing wild relatives: empirical estimates from approximate Bayesian computation in Aegilops triuncialis.
Extensive gene flow between wheat (Triticum sp.) and several wild relatives of the genus Aegilops has recently been detected despite notoriously high levels of selfing in these species. Here, we assess and model the spread of wheat alleles into natural populations of the barbed goatgrass (Aegilops triuncialis), a wild wheat relative prevailing in the Mediterranean flora. Our sampling, based on ...
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ژورنال
عنوان ژورنال: Shokubutsugaku Zasshi
سال: 1942
ISSN: 0006-808X
DOI: 10.15281/jplantres1887.56.225