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Data from: Three newly described species of Ziziphus from Maharashtra, India based on morphological and molecular evidence

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DataCite Commons2025-06-01 更新2025-06-15 收录
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https://datadryad.org/dataset/doi:10.5061/dryad.7sqv9s4zg
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Three new species of Ziziphus (Rhamnaceae) from Maharashtra, India, Z. bhandarii Gholave & S.P.Gaikwad, Z. naikii Gholave & S.P.Gaikwad, and Z. bhansalii Gholave & S.P.Gaikwad are described here. These species occur in isolated fragments of the Deccan thorn scrub forest ecoregion on the Deccan plateau. Their placement in Ziziphus is confirmed by molecular analyses combining ITS and trnL-F regions. Given this phylogeny is the most robust to date of Ziziphus, a previously proposed intrageneric classification was tested, and the classification was not supported suggesting a need for additional investigations in this genus. The new species are most closely related to three Indian species, Z. horrida Roth, Z. xylopyrus (Retz.) Willd., and Z. caracutta Buch.-Ham. ex Roxb, respectively, which are morphologically similar and sympatric, and are distinguishable from known species based on several vegetative and reproductive characteristics presented here. A diagnostic key to the Ziziphus species known to occur in Maharashtra is provided.

本文记述了产自印度马哈拉施特拉邦的3个枣属(Ziziphus,鼠李科Rhamnaceae)新种:分别为Z. bhandarii Gholave & S.P.Gaikwad、Z. naikii Gholave & S.P.Gaikwad以及Z. bhansalii Gholave & S.P.Gaikwad。这些新种分布于德干高原上的德干荆棘灌丛森林生态区的孤立片段生境中。通过结合内转录间隔区(ITS)与叶绿体trnL-F基因间隔区的分子分析,证实了这些类群隶属于枣属。鉴于该系统发育树是目前枣属研究中分辨率最高的成果,本文对前人提出的枣属属内分类系统进行了验证,结果显示该分类系统并不成立,提示该类群尚需开展更多深入研究。这3个新种分别与印度原产的3个枣属物种——Z. horrida Roth、Z. xylopyrus (Retz.) Willd.以及Z. caracutta Buch.-Ham. ex Roxb.亲缘关系最近,这3个已知种与新种形态相似且同域分布;本文通过多项营养体与生殖体形态特征,可将新种与所有已知枣属物种区分开来。本文还提供了马哈拉施特拉邦已知枣属物种的检索表。
提供机构:
Dryad
创建时间:
2023-10-17
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