Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1093/jxb/ers218 |
Phylogeny and photosynthetic pathway distribution in Anticharis Endl. (Scrophulariaceae) | |
Khoshravesh, Roxana1; Akhani, Hossein1; Sage, Tammy L.2; Nordenstam, Bertil3; Sage, Rowan F.2 | |
通讯作者 | Akhani, Hossein |
来源期刊 | JOURNAL OF EXPERIMENTAL BOTANY
![]() |
ISSN | 0022-0957 |
EISSN | 1460-2431 |
出版年 | 2012 |
卷号 | 63期号:15页码:5645-5658 |
英文摘要 | C-4 photosynthesis independently evolved > 62 times, with the majority of origins within 16 dicot families. One origin occurs in the poorly studied genus Anticharis Endl. (Scrophulariaceae), which consists of similar to 10 species from arid regions of Africa and southwest Asia. Here, the photosynthetic pathway of 10 Anticharis species and one species from each of the sister genera Aptosimum and Peliostomum was identified using carbon isotope ratios (C-13). The photosynthetic pathway was then mapped onto an internal transcribed spacer (ITS) phylogeny of Anticharis and its sister genera. Leaf anatomy was examined for nine Anticharis species and plants from Aptosimum and Peliostomum. Leaf ultrastructure, gas exchange, and enzyme distributions were assessed in Anticharis glandulosa collected in SE Iran. The results demonstrate that C-3 photosynthesis is the ancestral condition, with C-4 photosynthesis occurring in one clade containing four species. C-4 Anticharis species exhibit the atriplicoid type of C-4 leaf anatomy and the NAD-malic enzyme biochemical subtype. Six Anticharis species had C-3 or C3C4 C-13 values and branched at phylogenetic nodes that were sister to the C-4 clade. The rest of Anticharis species had enlarged bundle sheath cells, close vein spacing, and clusters of chloroplasts along the centripetal (inner) bundle sheath walls. These traits indicate that basal-branching Anticharis species are evolutionary intermediates between the C-3 and C-4 conditions. Anticharis appears to be an important new group in which to study the dynamics of C-4 evolution. |
英文关键词 | C3 C4 intermediates Kranz anatomy Lamiales phylogeny |
类型 | Article |
语种 | 英语 |
国家 | Iran ; Canada ; Sweden |
收录类别 | SCI-E |
WOS记录号 | WOS:000309140100023 |
WOS关键词 | CARBON-ISOTOPE DISCRIMINATION ; HELIOTROPIUM L. BORAGINACEAE ; C-4 PHOTOSYNTHESIS ; BIENERTIA-CYCLOPTERA ; KRANZ ANATOMY ; GAS-EXCHANGE ; ULTRASTRUCTURE ; EVOLUTION ; LEAVES ; PLANT |
WOS类目 | Plant Sciences |
WOS研究方向 | Plant Sciences |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/173520 |
作者单位 | 1.Univ Tehran, Coll Sci, Sch Biol, Dept Plant Sci, Tehran, Iran; 2.Univ Toronto, Dept Ecol & Evolutionary Biol, Toronto, ON M5S 3B2, Canada; 3.Swedish Museum Nat Hist, Dept Phanerogam Bot, S-10405 Stockholm, Sweden |
推荐引用方式 GB/T 7714 | Khoshravesh, Roxana,Akhani, Hossein,Sage, Tammy L.,et al. Phylogeny and photosynthetic pathway distribution in Anticharis Endl. (Scrophulariaceae)[J],2012,63(15):5645-5658. |
APA | Khoshravesh, Roxana,Akhani, Hossein,Sage, Tammy L.,Nordenstam, Bertil,&Sage, Rowan F..(2012).Phylogeny and photosynthetic pathway distribution in Anticharis Endl. (Scrophulariaceae).JOURNAL OF EXPERIMENTAL BOTANY,63(15),5645-5658. |
MLA | Khoshravesh, Roxana,et al."Phylogeny and photosynthetic pathway distribution in Anticharis Endl. (Scrophulariaceae)".JOURNAL OF EXPERIMENTAL BOTANY 63.15(2012):5645-5658. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。