Molecular phylogenetic studies on Asparagus (Asparagaceae) revealed the position of the highly endangered Irano-Turkish halophytic species A. lycaonicus P.H.Davis related to A. officinalis L.

IF 1 4区生物学 Q3 PLANT SCIENCES

Phytotaxa Pub Date : 2024-05-02 DOI:10.11646/phytotaxa.646.2.3

H. Akhani, Hussaini Abdollahi, O. Ürker, Maryam Malekmohammadi

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Abstract

Asparagus lycaonicus P.H.Davis (Asparagaceae), a highly interesting halophytic species was found in two disjunct populations of ca. 1550 km aerial distance, one in Central Anatolia (Bolluk Salt Lake) and the other in Central Iran (Meyghan Salt Lake). Using one nuclear phytochrome C (PHYC) and two plastid regions (trnH-psbA and trnD-T) the phylogenetic position of this Irano-Turkish endemic species was studied. In contrast to low resolution of plastid sequences, the PHYC provides good resolution for understanding species level phylogeny in SW Asian Asparagus. Molecular data confirms a conspecific position of the two disjunct localities in Turkey and Iran and their position in a clade containing cultivated Asparagus and many other Irano-Turkish species. Asparagus lycaonicus is extremely rare in Iran and since its discovery in 1986, it has never been rediscovered in Iran, even in its initial collection site. Intensive land use activities, water level changes and the passage of Arak wastewater into the Meyghan Salt Lake area has drastically changed the habitat of A. lycaonicus and might have caused its extinction. Since its discovery in 1960 in Turkey, the species is only found in a small area around and inside a sodic extraction factory around Bolluk Lake. Considering the critical condition of its populations in Iran and Turkey, we evaluate the conservation status of Asparagus lycaonicus as Critically Endangered (CR). In conclusion we urge the authorities to implement in situ measures for conservation and restoration of the habitats of A. lycaonicus, a halophytic species related to cultivated Asparagus. The taxonomic status of some newly described Asparagus from Iran is discussed with reducing A. touranensis Hamdi & Assadi to synonym of A. griffithii Baker., A. khorasanensis Hamdi & Assadi to synonym of A. breslerianus Schult. & Schult.f, and Asparagus bojnurdensis Hamdi & Assadi to synonym of A. verticillatus L.

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天门冬（天门冬科）的分子系统发育研究表明，高度濒危的伊朗-土耳其盐生物种A. lycaonicus P.H.Davis与A. officinalis L.有亲缘关系。

天门冬（Asparagus lycaonicus P.H.Davis，天门冬科）是一种非常有趣的卤叶植物，在两个相距约 1550 千米的不相连的种群中被发现，一个种群位于安纳托利亚中部（博鲁克盐湖），另一个种群位于伊朗中部（梅汉盐湖）。利用一个核植物色素 C（PHYC）和两个质体区域（trnH-psbA 和 trnD-T）研究了这一伊朗-土耳其特有物种的系统发育位置。与质粒序列的低分辨率相比，PHYC 为了解亚洲西南部芦笋的物种系统发育提供了良好的分辨率。分子数据证实了土耳其和伊朗两个不相连的地方芦笋的同种地位，以及它们在一个包含栽培芦笋和许多其他伊朗-土耳其物种的支系中的地位。lycaonicus 芦笋在伊朗极为罕见，自 1986 年被发现以来，从未在伊朗再次被发现，即使在其最初的采集地也是如此。密集的土地使用活动、水位变化以及阿拉克废水进入梅甘盐湖地区，极大地改变了芦笋的栖息地，可能导致其灭绝。自 1960 年在土耳其被发现以来，该物种仅在博卢克湖附近的一个钠盐提取工厂周围和内部的一小片区域被发现。考虑到其在伊朗和土耳其的种群处于危急状态，我们将芦笋的保护级别定为极度濒危（CR）。最后，我们敦促有关当局采取原地保护和恢复芦笋栖息地的措施，芦笋是一种与栽培芦笋相关的盐生物种。讨论了伊朗新描述的一些芦笋的分类地位，将 A. touranensis Hamdi & Assadi 降为 A. griffithii Baker.的异名，将 A. khorasanensis Hamdi & Assadi 降为 A. breslerianus Schult.

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来源期刊

Phytotaxa PLANT SCIENCES-

CiteScore

1.90

自引率

27.30%

发文量

956

审稿时长

1 months

期刊介绍： Phytotaxa is a peer-reviewed, international journal for rapid publication of high quality papers on any aspect of systematic and taxonomic botany, with a preference for large taxonomic works such as monographs, floras, revisions and evolutionary studies and descriptions of new taxa. Phytotaxa covers all groups covered by the International Code of Nomenclature foralgae, fungi, and plants ICNafp (fungi, lichens, algae, diatoms, mosses, liverworts, hornworts, and vascular plants), both living and fossil. Phytotaxa was founded in 2009 as botanical sister journal to Zootaxa. It has a large editorial board, who are running this journal on a voluntary basis, and it is published by Magnolia Press (Auckland , New Zealand). It is also indexed by SCIE, JCR and Biosis. All types of taxonomic, floristic and phytogeographic papers are considered, including theoretical papers and methodology, systematics and phylogeny, monographs, revisions and reviews, catalogues, biographies and bibliographies, history of botanical explorations, identification guides, floras, analyses of characters, phylogenetic studies and phytogeography, descriptions of taxa, typification and nomenclatural papers. Monographs and other long manuscripts (of 60 printed pages or more) can be published as books, which will receive an ISBN number as well as being part of the Phytotaxa series.

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