Registration of Golden Promise/Otis barley recombinant inbred line mapping population

IF 0.6 4区农林科学 Q4 AGRONOMY

Journal of Plant Registrations Pub Date : 2023-10-29 DOI:10.1002/plr2.20337

Phil Bregitzer, Oyeyemi Ajayi, Dongying Gao, Kathy Esvelt Klos, Ramamurthy Mahalingam

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Abstract

A recombinant inbred line mapping population was developed from a cross between the heritage malting barley (Hordeum vulgare ssp. vulgare) cultivar ‘Golden Promise’ and ‘Otis’, a feed barley cultivar developed in the 1960s suitable for the high dry plains. The Golden Promise/Otis recombinant inbred line (RIL) population (MP-3, NSL 545640 MAP) consists of 190 F_5:7 individuals. The parental lines exhibited significant differences in several agronomic traits including height, heading date, yield/plant, and lodging. Transgressive segregation in the RILs was evidenced by the broad range of values observed for these agronomic traits. The RIL population was genotyped using the Illumina 50k iSelect single nucleotide polymorphism (SNP) arrays. Of the 10,810 polymorphic markers that were identified between the two parents, 4617 markers were used for generating a genetic map that spanned 4566 cM with an average distance of 1 cM between markers. The fact that Golden Promise is a malting cultivar developed in the United Kingdom, versus Otis, a feed barley bred in the United States for dryland cultivation, indicates that this population may be useful in identifying the genetic basis of many other traits.

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由传统的麦芽大麦（Hordeum vulgare ssp. vulgare）栽培品种 "Golden Promise "和 20 世纪 60 年代培育的适合高干平原的饲料大麦栽培品种 "Otis "杂交培育出了一个重组近交系图谱群体。Golden Promise/Otis 重组近交系（RIL）群体（MP-3，NSL 545640 MAP）由 190 个 F5:7 个体组成。亲本品系在多个农艺性状上表现出显著差异，包括株高、茎穗期、产量/株和结实率。在这些农艺性状上观察到的数值范围很广，这证明了 RIL 中的转基因分离。利用 Illumina 50k iSelect 单核苷酸多态性（SNP）阵列对 RIL 群体进行了基因分型。在两个亲本之间鉴定出的 10,810 个多态性标记中，有 4617 个标记被用于生成横跨 4566 cM 的遗传图谱，标记之间的平均距离为 1 cM。Golden Promise 是英国培育的一种麦芽栽培品种，而 Otis 则是美国培育的一种用于旱地种植的饲料大麦，这一事实表明该群体可能有助于确定许多其他性状的遗传基础。

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来源期刊

Journal of Plant Registrations 农林科学-农艺学

CiteScore

1.60

自引率

37.50%

发文量

审稿时长

2 months

期刊介绍： The Journal of Plant Registrations is an official publication of the Crop Science Society of America and the premier international venue for plant breeders, geneticists, and genome biologists to publish research describing new and novel plant cultivars, germplasms, parental lines, genetic stocks, and genomic mapping populations. In addition to biomedical, nutritional, and agricultural scientists, the intended audience includes policy makers, humanitarian organizations, and all facets of food, feed, fiber, bioenergy, and shelter industries. The scope of articles includes (1) cultivar, germplasm, parental line, genetic stock, and mapping population registration manuscripts, (2) short manuscripts characterizing accessions held within Plant Germplasm Collection Systems, and (3) descriptions of plant genetic materials that have made a major impact on agricultural security. Registration of plant genetic resources, item (1) above, requires deposit of plant genetic material into the USDA ARS National Plant Germplasm System prior to publication.