Polyploidy determines the stage of invasion: clues from Kashmir Himalayan aquatic flora
Gowher A. Wani, Manzoor A. Shah, Zafar A. Reshi, Mudasir A. Dar
Acta Physiologiae Plantarum 40 (2018).
They tried to confirm that polyploidy was a one of cause for plant invasion in Kashmir Himalaya. And they concluded that's possible to be a cause of the expansion.
Cyperaceae in Kashmir Himalayan aquatic flora
Carex diluta Bieb. 2n = 56 Favarger et al. (1979)
Cladium mariscus (L.) Pohl 2n = 18 Favarger et al. (1979)
Cyperus diformis L. 2n = 36 Kumar and Subramaniam
(1986)
Cyperus fabelliformis Rottb 2n = 30 Bir et al. (1992)
Cyperus fuscus L. 2n = 36, 48, 72 Subramanian (1988)
Cyperus globosus L. 2n = 40 Bir et al. (1992)
Cyperus glomeratus L. 2n = 60 Bir et al. (1992)
Cyperus iria L. n=56, 64 Bir et al. (1992)
Cyperus pumilus L. n=45 Bir et al. (1992)
Cyperus rotundus L. 2n = 42–80, 108 Bir et al. (1992)
Cyperus sanguinolentus L. n=40, 56 Bir et al. (1992)
Eleocharis atropurpurea (Retz.) SAm 2n = 20 Yano et al. (2004)
Eleocharis acicularis (L.) Roem.& Schult. 2n = 20 Zedek et al. (2010)
Eleocharis palustris (L.) Roem.& Schult. 2n = 16 Tanaka (1948)
Eleocharis parishii Britton n=5 Tanaka (1948)
Eleocharis paucifora Link 2n = 76 Roalson (2008)
Fimbristylis dichotoma (L.) Vahl. 2n = 10 Da Silva et al. (2008)
Scirpus juncoides Roxb 2n = 74 Yano and Hoshino (2005)
Scirpus martimus L. 2n = 86, 104, 110 Hakansson (1928)
Scirpus triqueter L. 2n = 40, 42 Da Silva et al. (2008)
倍数性が外来種の分布拡大を助けている可能性を踏まえ、ヒマラヤ カシミール地方でこれまでの染色体数を調査。結果、拡大の可能性として倍数性が原因のひとつと考えられることを示唆した。