Inverted repeat-lacking clade

Inverted repeat-lacking clade
Galega officinalis
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
(unranked): Hologalegina
(unranked): Inverted repeat-lacking clade
(Wojciechowski et al. 2000,[1] 2004[2]) Wojciechowski 2013[3]
Tribes[1][4]

Incertae Sedis

Synonyms
  • Galegeae sensu lato sensu Polhill, 1981
  • IR-lacking clade
  • IRLC
  • Temperate herbaceous clade
  • THC

The Inverted repeat-lacking clade is a monophyletic clade of the flowering plant subfamily Faboideae (or Papilionaceae) that includes the majority of agriculturally-cultivated legumes. It is characterized by the loss of one of the two 25-kb inverted repeats in the plastid genome that are found in most land plants.[5] It is consistently resolved in molecular phylogenies.[1][2][4][5][6][7][8][9][10][11][12] The clade is predicted to have diverged from the other legume lineages 39.0±2.4 million years ago (in the Eocene).[5] It includes several large, temperate genera such as Astragalus L., Hedysarum L., Medicago L., Oxytropis DC., Swainsona Salisb., and Trifolium L..

Description

This clade is composed of five traditional tribes (Cicereae Alef. 1859, Fabeae Rchb. 1832, Galegeae Dumort. 1827, Hedysareae DC. 1825, Trifolieae Endl. 1830) and several genera of the traditional tribe Millettieae (Afgekia Craib 1927, Callerya Endl. 1843, Endosamara R. Geesink 1984, Sarcodum Lour. 1790, Wisteria Nutt.1818, and possibly Antheroporum Gagnep. 1915).[3] The name of this clade is informal and is not assumed to have any particular taxonomic rank like the names authorized by the ICBN or the ICPN.[3] The clade is defined as:

"The most inclusive crown clade exhibiting the structural mutation in the plastid genome (loss of one copy of the ~25-kb inverted repeat region) homologous with that found in Galega officinalis L. 1753, Glycyrrhiza lepidota Nuttall 1813, and Vicia faba L., where these taxa are extant species included in the crown clade defined by this name."[3]

References

  1. 1 2 3 Wojciechowski MF, Sanderson MJ, Steele KP, Liston A. (2000). "Molecular phylogeny of the “temperate herbaceous tribes” of papilionoid legumes: a supertree approach" (PDF). In Herendeen PS, Bruneau A.. Advances in Legume Systematics, Part 9. Kew, UK: Royal Botanic Gardens. pp. 277–298. ISBN 184246017X.
  2. 1 2 Wojciechowski MF, Lavin M, Sanderson MJ. (2004). "A phylogeny of legumes (Leguminosae) based on analysis of the plastid matK gene resolves many well-supported subclades within the family". Am J Bot 91 (11): 1846–1862. doi:10.3732/ajb.91.11.1846. PMID 21652332.
  3. 1 2 3 4 Wojciechowski MF. (2013). "Towards a new classification of Leguminosae: Naming clades using non-Linnaean phylogenetic nomenclature". S Afr J Bot 89: 85–93. doi:10.1016/j.sajb.2013.06.017.
  4. 1 2 Cardoso D, Pennington RT, de Queiroz LP, Boatwright JS, Van Wyk B-E, Wojciechowski MF, Lavin M. (2013). "Reconstructing the deep-branching relationships of the papilionoid legumes". S Afr J Bot 89: 58–75. doi:10.1016/j.sajb.2013.05.001.
  5. 1 2 3 Lavin M, Doyle JJ, Palmer JD. (1990). "Evolutionary significance of the loss of the chloroplast-DNA inverted repeat in the Leguminosae subfamily Papilionoideae". Evolution 44 (2): 390–402. doi:10.2307/2409416. JSTOR 2409416.
  6. ↑ Liston A. (1995). "Use of the polymerase chain reaction to survey for the loss of the inverted repeat in the legume chloroplast genome". In Crisp MD, Doyle JJ.. Advances in Legume Systematics, Part 7: Phylogeny. Kew, UK: Royal Botanic Gardens. pp. 31–40. ISBN 0947643796.
  7. ↑ Käss E, Wink M. (1996). "Molecular evolution of the Leguminosae: Phylogeny of the three subfamilies based on rbcL-sequences". Biochem Syst Ecol 24 (5): 365–378. doi:10.1016/0305-1978(96)00032-4.
  8. ↑ Sanderson MJ, Wojciechowski MF. (1996). "Diversification rates in a temperate legume clade: are there "so many species" of Astragalus (Fabaceae)?". Am J Bot 83 (11): 1488–1502. doi:10.2307/2446103.
  9. ↑ Doyle JJ, Doyle JL, Ballenger JA, Dickson EE, Kajita T, Ohashi H. (1997). "A phylogeny of the chloroplast gene rbcL in the Leguminosae: taxonomic correlations and insights into the evolution of nodulation". Am J Bot 84 (4): 541–554. doi:10.2307/2446030. PMID 21708606.
  10. ↑ Pennington RT, Lavin M, Ireland H, Klitgaard B, Preston J, Hu J-M. (2001). "Phylogenetic relationships of basal papilionoid legumes based upon sequences of the chloroplast trnL intron". Syst Bot 55 (5): 818–836. doi:10.1043/0363-6445-26.3.537.
  11. ↑ McMahon MM, Sanderson MJ. (2006). "Phylogenetic supermatrix analysis of GenBank sequences from 2228 papilionoid legumes". Syst Biol 99 (12): 1991–2013. doi:10.3732/ajb.1200380.
  12. ↑ Cardoso D, de Queiroz LP, Pennington RT, de Lima HC, Fonty É, Wojciechowski MF, Lavin M. (2012). "Revisiting the phylogeny of papilionoid legumes: new insights from comprehensively sampled early-branching lineages". Am J Bot 99 (12): 1991–2013. doi:10.3732/ajb.1200380.

External links

This article is issued from Wikipedia - version of the Saturday, September 05, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.