Pollen morphology of Rhododendron subgen. Tsutsusi and its systematic implications

doi:10.1111/j.1759-6831.2009.00011.x

J Syst Evol ›› 2009, Vol. 47 ›› Issue (2): 123-138.DOI: 10.1111/j.1759-6831.2009.00011.x cstr: 32099.14.j.1759-6831.2009.00011.x

• Research Articles • Previous Articles Next Articles

Pollen morphology of Rhododendron subgen. Tsutsusi and its systematic implications

Yue-Jiao ZHANG ^1,2 Xiao-Feng JIN*¹ Bing-Yang DING*³ Jing-Ping ZHU ⁴

Yue-Jiao ZHANG 1,2 Xiao-Feng JIN*1 Bing-Yang DING*3 Jing-Ping ZHU 4 ¹ ( School of Life & Environment Sciences, Hangzhou Normal University, Hangzhou 310036, China )
² ( College of Life Sciences, Zhejiang University, Hangzhou 310012, China )
³ ( School of Life & Environment Sciences, Wenzhou University, Wenzhou 325027, China )
⁴ ( Center of Analysis & Measurement, Zhejiang University, Hangzhou 310028, China ) *Author for correspondence. E-mail: ; .

Received:2008-06-05 Published:2009-04-02

Abstract

Abstract: Eighty-four pollen samples were obtained for 80 taxa, of which, 13 species and one variety are from sect. Brachycalyx Sweet, 58 species and two varieties from sect. Tsutsusi Sweet, and six species from subgen. Pentanthera (G. Don) Pojarkova, respectively. Pollen morphology of all samples was observed using LM and SEM. Pollen grains are revealed to be spheroidal and tetrahedral with tricolporate apertures. Pollen sizes of subgen. Tsutsusi (Sweet) Pojarkova range from 37.67 μm to 61.06 μm, and the exine sculptures are more or less compactly granulated. Pollen sizes are significantly different between sect. Brachycalyx and sect. Tsutsusi of subgen. Tsutsusi. Rhododendron tashiroi Maxim. of sect. Tsusiopsis Sleumer shows a close affinity to sect. Brachycalyx. Pollen size and exine are consistent with general morphology in differentiating species in sect. Tsutsusi. Rhododendron huadingense B. Y. Ding & Y. Y. Fang, once placed as a member of sect. Brachycalyx, should be considered as a species in subgen. Pentanthera.

Key words: Ericaceae, Rhododendron subgen. Tsutsusi, pollen morphology, tetrahedral tetrads, systematic implication

Yue-Jiao ZHANG, Xiao-Feng JIN, Bing-Yang DING, Jing-Ping ZHU. Pollen morphology of Rhododendron subgen. Tsutsusi and its systematic implications[J]. J Syst Evol, 2009, 47(2): 123-138.

[1]	Cai-Xia Wei, Phillip E. Jardine, Li-Mi Mao, Luke Mander, Mao Li, William D. Gosling, Carina Hoorn. Grass pollen surface ornamentation is diverse across the phylogeny: Evidence from northern South America and the global literature [J]. J Syst Evol, 2024, 62(4): 687-701.
[2]	Jian-Shuang Shen, Lan Lan, Sheng-Long Kan, He-Feng Cheng, Dan Peng, Zi-Yun Wan, Yue Hu, Xiao-Ling Huang, Xue-Qin Li, Yuan-Jun Ye, Luke R. Tembrock, Zhi-Qiang Wu, and Song-Heng Jin. A haplotype-resolved genome for Rhododendron × pulchrum and the expression analysis of heat shock genes [J]. J Syst Evol, 2024, 62(3): 489-504.
[3]	Qian-Ru Zhao, Jing Zhou, Hua Peng, and Zhen-Wen Liu. Resurrection of the East Asian genus Eremotropa (Monotropoideae, Ericaceae), based on molecular and morphological data [J]. J Syst Evol, 2019, 57(1): 75-80.
[4]	Yuan Xu, Chi-Ming Hu, Gang Hao. Pollen morphology of Androsace (Primulaceae) and its systematic implications [J]. J Syst Evol, 2016, 54(1): 48-64.
[5]	Qiang WANG, Xin-Tang MA, De-Yuan HONG. Phylogenetic analyses reveal three new genera of the Campanulaceae [J]. J Syst Evol, 2014, 52(5): 541-550.
[6]	Wenting SHI, Jun WEN, Susan LUTZ. Pollen morphology of the Maddenia clade of Prunus and its taxonomic and phylogenetic implications [J]. J Syst Evol, 2013, 51(2): 164-183.
[7]	Hua-Fen ZHANG, Hai-Bo OUYANG, Jin-Yan DU,Shou-Zhou ZHANG,Yong LI, Hong WU. Microsporogenesis of Cycas and its systematic implications [J]. J Syst Evol, 2012, 50(2): 125-134.
[8]	He REN, Lu LU, Hong WANG, De-Zhu LI. DNA Barcoding of Gaultheria L. in China (Ericaceae: Vaccinioideae) [J]. J Syst Evol, 2011, 49(5): 411-424.
[9]	Lei MENG, Xiang-Yun ZHU. Palynological characters of Glycyrrhiza, Glycyrrhizopsis, and Meristotropis (Leguminosae), with special reference to their taxonomic significance [J]. J Syst Evol, 2010, 48(6): 455-463.
[10]	Tae-Soo Jang, Suk-Pyo Hong. Comparative pollen morphology of Glechoma and Marmoritis (Nepetinae, Lamiaceae) [J]. J Syst Evol, 2010, 48(6): 464-473.
[11]	Piyaporn SAENSOUK, Pranom CHANTARANOTHAI, Piyada THEERAKULPISUT. Pollen morphology of the genus Cornukaempferia (Zingiberaceae) in Thailand [J]. J Syst Evol, 2009, 47(2): 139-143.
[12]	Feng-Juan MOU, Dian-Xiang ZHANG. Glycosmis longipetala F. J. Mou & D. X. Zhang, a new species of Rutaceae from China [J]. J Syst Evol, 2009, 47(2): 162-167.
[13]	1Jia-Xi LIU; 2Yi-Zhen XI*; 2Yu-Long ZHANG; 2Jian-Chang NING; 1Xiao-Rui LIU. Pollen morphology of Heliotropioideae in Boraginaceae from China and its systematic significance [J]. J Syst Evol, 2008, 46(6): 891-898.
[14]	Xiao-Fang DENG, Dian-Xiang ZHANG. Mussaenda lancipetala X. F. Deng & D. X. Zhang, a new species of Rubiaceae from China [J]. J Syst Evol, 2008, 46(2): 220-225.
[15]	Wei SUN, Zhong-Ze ZHOU, Ming-Zhen LIU, He-Wen WAN, Xiang DONG. Reappraisal of the generic status of Pteroxygonum (Polygonaceae) on the basis of morphology, anatomy and nrDNA ITS sequence analysi [J]. J Syst Evol, 2008, 46(1): 53-59.

Pollen morphology of Rhododendron subgen. Tsutsusi and its systematic implications

HTML

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments