M. M. Gevorkyan, A. V. Babosha, P. O. Loshakova, A. A. Pogost, G. I. Komarova, T. S. Wineshenker, V. P. Upelniek
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Among those specific to the paternal form (<i>E. farctus</i>) are the Ω-shaped anticlinal walls of long epidermal cells, rounded silica cells, shield-shaped prickle hairs with a shortened barb on both leaf surfaces, and apically directed prickles on the adaxial costal zone. The presence of trichomes in the intercostal zone of the leaf adaxial side and macrohairs on the veins is likely to have been inherited from the maternal form and may be traced back to cultivar ‘Botanicheskaya 3’ and <i>E. intermedia</i>. The average cell width of cell rows in hybrids corresponded to the values of wild species <i>E. farctus</i>. Moreover, the hybrids exhibited smaller and more frequent stomata than both parental forms, as well as <i>E. farctus</i>. Concurrently, while the characteristics of the wild species <i>E. farctus</i> were dominant in the initial generation, those of the cultivated form (× <i>Trititrigia</i> × ‘Botanicheskaya 3’) were evident in the fourth generation. This was evidenced by the emergence of silica cells analogous to those observed in the maternal form, as well as the appearance of hybrid samples that exhibited spikelet shape, stomatal frequency, and cell row width characteristics similar to those of the cultivated maternal plant. These changes are likely the result of the loss of genetic material from the wild paternal species, <i>E. farctus</i>.</p>","PeriodicalId":12467,"journal":{"name":"Genetic Resources and Crop Evolution","volume":null,"pages":null},"PeriodicalIF":1.6000,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The leaf surface micromorphology of plants obtained from crosses between Elymus farctus and the stable form × Trititrigia cziczinii × wheat cultivar ‘Botanicheskaya 3’\",\"authors\":\"M. M. Gevorkyan, A. V. Babosha, P. O. Loshakova, A. A. Pogost, G. I. Komarova, T. S. Wineshenker, V. P. 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引用次数: 0
摘要
利用扫描电子显微镜(SEM)研究了Elymus farctus (Viv.) Runemark ex Melderis杂交(稳定型×Trititrigia cziczinii × 'Botanicheskaya 3')产生的F1-F4杂交种叶片表面的微形态特征。结果表明,F1 植物的叶片结构包含亲本和父本共有的微形态标记和其中一个亲本特有的特征。其中父本(E. farctus)特有的特征包括长表皮细胞的Ω形反侧壁、圆形硅细胞、叶片两面带有缩短倒钩的盾形刺毛以及正面叶缘区顶端的刺。叶片正面肋间带的毛状体和叶脉上的大毛很可能是从母本继承而来,可以追溯到栽培品种 "Botanicheskaya 3 "和 E. intermedia。杂交种细胞行的平均宽度与野生种 E. farctus 的值一致。此外,与亲本和 E. farctus 相比,杂交种的气孔更小、更频繁。同时,虽然野生种 E. farctus 的特征在第一代占主导地位,但栽培品种(× Trititrigia × 'Botanicheskaya 3')的特征在第四代很明显。这表现在出现了与母本类似的硅细胞,以及杂交样本出现了与栽培母本类似的小穗形状、气孔频率和胞排宽度特征。这些变化很可能是野生父本物种 E. farctus 遗传物质流失的结果。
The leaf surface micromorphology of plants obtained from crosses between Elymus farctus and the stable form × Trititrigia cziczinii × wheat cultivar ‘Botanicheskaya 3’
The micromorphological characteristics of the leaf surface of F1–F4 hybrids derived from crosses (stable form × Trititrigia cziczinii × ‘Botanicheskaya 3’) on Elymus farctus (Viv.) Runemark ex Melderis were investigated using scanning electron microscopy (SEM). It is demonstrated that the leaf structure of F1 plants contains micromorphological markers common to both parental forms and traits peculiar to one of the parents. Among those specific to the paternal form (E. farctus) are the Ω-shaped anticlinal walls of long epidermal cells, rounded silica cells, shield-shaped prickle hairs with a shortened barb on both leaf surfaces, and apically directed prickles on the adaxial costal zone. The presence of trichomes in the intercostal zone of the leaf adaxial side and macrohairs on the veins is likely to have been inherited from the maternal form and may be traced back to cultivar ‘Botanicheskaya 3’ and E. intermedia. The average cell width of cell rows in hybrids corresponded to the values of wild species E. farctus. Moreover, the hybrids exhibited smaller and more frequent stomata than both parental forms, as well as E. farctus. Concurrently, while the characteristics of the wild species E. farctus were dominant in the initial generation, those of the cultivated form (× Trititrigia × ‘Botanicheskaya 3’) were evident in the fourth generation. This was evidenced by the emergence of silica cells analogous to those observed in the maternal form, as well as the appearance of hybrid samples that exhibited spikelet shape, stomatal frequency, and cell row width characteristics similar to those of the cultivated maternal plant. These changes are likely the result of the loss of genetic material from the wild paternal species, E. farctus.
期刊介绍:
Genetic Resources and Crop Evolution is devoted to all aspects of plant genetic resources research. It publishes original articles in the fields of taxonomical, morphological, physiological, biochemical, genetical, cytological or ethnobotanical research of genetic resources and includes contributions to gene-bank management in a broad sense, that means to collecting, maintenance, evaluation, storage and documentation.
Areas of particular interest include:
-crop evolution
-domestication
-crop-weed relationships
-related wild species
-history of cultivated plants including palaeoethnobotany.
Genetic Resources and Crop Evolution also publishes short communications, e.g. newly described crop taxa, nomenclatural notes, reports of collecting missions, evaluation results of gene-bank material etc. as well as book reviews of important publications in the field of genetic resources.
Every volume will contain some review articles on actual problems. The journal is the internationalized continuation of the German periodical Die Kulturpflanze, published formerly by the Institute of Plant Genetics and Crop Plant Research at Gatersleben, Germany.
All contributions are in the English language and are subject to peer reviewing.