Toker Cengiz, Berger Jens, Eker Tuba, Sari Duygu, Sari Hatice, Gokturk Ramazan Suleyman, Kahraman Abdullah, Aydin Bilal, von Wettberg Eric J
Department of Field Crops, Akdeniz University, Antalya, Turkey.
CSIRO Agriculture and Food, Wembley, WA, Australia.
Front Plant Sci. 2021 Apr 15;12:662891. doi: 10.3389/fpls.2021.662891. eCollection 2021.
Genetic resources of the genus L. are not only limited when compared to other important food legumes and major cereal crops but also, they include several endemic species with endangered status based on the criteria of the International Union for Conservation of Nature. The chief threats to endemic and endangered species are over-grazing and habitat change in their natural environments driven by climate changes. During a collection mission in east and south-east Anatolia (Turkey), a new species was discovered, proposed here as Toker, Berger & Gokturk. Here, we describe the morphological characteristics, images, and ecology of the species, and present preliminary evidence of its potential utility for chickpea improvement. is an annual species, endemic to southeast Anatolia and to date has only been located in a single population distant from any other known annual species. It belongs to section M. Pop. of the subgenus M. Pop. of the genus L. (Fabaceae) and on the basis of internal transcribed spacer (ITS) sequence similarity appears to be a sister species of Ladiz. and P.H. Davis, both of which are inter-fertile with domestic chickpea ( L.). With the addition of , the genus now comprises 10 annual and 36 perennial species. As a preliminary evaluation of its potential for chickpea improvement two accessions of were field screened for reproductive heat tolerance and seeds were tested for bruchid resistance alongside a representative group of wild and domestic annual species. expressed the highest heat tolerance and similar bruchid resistance as Boiss. and Juab. & Spach, neither of which are in the primary genepool of domestic chickpea. Given that and returned the lowest and the second lowest tolerance and resistance scores, may hold much potential for chickpea improvement if its close relatedness supports interspecific hybridization with the cultigen. Crossing experiments are currently underway to explore this question.
与其他重要的食用豆类和主要谷类作物相比，兵豆属的遗传资源不仅有限，而且根据国际自然保护联盟的标准，该属还包括一些处于濒危状态的特有物种。特有和濒危物种面临的主要威胁是气候变化导致其自然环境中的过度放牧和栖息地变化。在土耳其安纳托利亚东部和东南部的一次采集任务中，发现了一个新物种，在此提议命名为托克尔、伯杰和戈克图尔克。在此，我们描述了该物种的形态特征、图像和生态，并提供了其对鹰嘴豆改良潜在效用的初步证据。托克尔兵豆是一年生物种，为安纳托利亚东南部特有，迄今为止仅在一个远离任何其他已知一年生物种的种群中被发现。它属于兵豆属（豆科）副属M. Pop.的M. Pop.组，根据内转录间隔区（ITS）序列相似性，它似乎是拉迪兹兵豆和P.H. 戴维斯兵豆的姐妹物种，这两个物种都能与栽培鹰嘴豆（鹰嘴豆）杂交。加上托克尔兵豆，兵豆属现在包括10个一年生物种和36个多年生物种。作为对其鹰嘴豆改良潜力的初步评估，对两个托克尔兵豆种质进行了田间耐热性筛选，并与一组有代表性的野生和栽培一年生兵豆物种一起对种子进行了豆象抗性测试。托克尔兵豆表现出最高的耐热性，豆象抗性与博伊斯兵豆和朱阿卜&斯帕奇兵豆相似，而后两者都不在栽培鹰嘴豆的初级基因库中。鉴于拉迪兹兵豆和P.H. 戴维斯兵豆的耐热性和抗性得分最低和次低，如果托克尔兵豆与栽培品种的密切亲缘关系支持种间杂交，那么它在鹰嘴豆改良方面可能具有很大潜力。目前正在进行杂交实验以探索这个问题。
